TSTP Solution File: SEU691^2 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : SEU691^2 : TPTP v8.1.2. Released v3.7.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.OebLUwYxvx true

% Computer : n015.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Aug 31 19:16:15 EDT 2023

% Result   : Theorem 9.01s 1.78s
% Output   : Refutation 9.01s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   37
%            Number of leaves      :   44
% Syntax   : Number of formulae    :  310 (  58 unt;  25 typ;   0 def)
%            Number of atoms       : 1875 ( 281 equ;   0 cnn)
%            Maximal formula atoms :   70 (   6 avg)
%            Number of connectives : 8436 ( 441   ~; 540   |; 100   &;6596   @)
%                                         (   0 <=>; 466  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   29 (  12 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   47 (  47   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   29 (  25 usr;  11 con; 0-4 aty)
%                                         ( 250  !!;  43  ??;   0 @@+;   0 @@-)
%            Number of variables   : 1074 ( 478   ^; 585   !;  11   ?;1074   :)

% Comments : 
%------------------------------------------------------------------------------
thf('#sk1_type',type,
    '#sk1': $i ).

thf(subset_type,type,
    subset: $i > $i > $o ).

thf('#sk8_type',type,
    '#sk8': $i > $i > $i > $i > $i ).

thf(in_type,type,
    in: $i > $i > $o ).

thf(ap_type,type,
    ap: $i > $i > $i > $i > $i ).

thf(func_type,type,
    func: $i > $i > $i > $o ).

thf('#sk4_type',type,
    '#sk4': $i > $i > $i > $i ).

thf(setadjoin_type,type,
    setadjoin: $i > $i > $i ).

thf('#sk5_type',type,
    '#sk5': $i ).

thf(cartprod_type,type,
    cartprod: $i > $i > $i ).

thf('#sk7_type',type,
    '#sk7': $i > $i ).

thf('#form10_type',type,
    '#form10': $i > $i > $i > $i > $o ).

thf('#sk2_type',type,
    '#sk2': $i ).

thf(singleton_type,type,
    singleton: $i > $o ).

thf(eqbreln_type,type,
    eqbreln: $o ).

thf(funcGraphProp2_type,type,
    funcGraphProp2: $o ).

thf('#sk9_type',type,
    '#sk9': $i > $i ).

thf(kpair_type,type,
    kpair: $i > $i > $i ).

thf(dsetconstr_type,type,
    dsetconstr: $i > ( $i > $o ) > $i ).

thf(ex1_type,type,
    ex1: $i > ( $i > $o ) > $o ).

thf(emptyset_type,type,
    emptyset: $i ).

thf('#sk6_type',type,
    '#sk6': $i > $i > $i > $i > $i ).

thf(funcGraphProp1_type,type,
    funcGraphProp1: $o ).

thf(breln_type,type,
    breln: $i > $i > $i > $o ).

thf('#sk3_type',type,
    '#sk3': $i ).

thf(eqbreln,axiom,
    ( eqbreln
    = ( ! [A: $i,B: $i,R: $i] :
          ( ( breln @ A @ B @ R )
         => ! [S: $i] :
              ( ( breln @ A @ B @ S )
             => ( ! [Xx: $i] :
                    ( ( in @ Xx @ A )
                   => ! [Xy: $i] :
                        ( ( in @ Xy @ B )
                       => ( ( in @ ( kpair @ Xx @ Xy ) @ R )
                         => ( in @ ( kpair @ Xx @ Xy ) @ S ) ) ) )
               => ( ! [Xx: $i] :
                      ( ( in @ Xx @ A )
                     => ! [Xy: $i] :
                          ( ( in @ Xy @ B )
                         => ( ( in @ ( kpair @ Xx @ Xy ) @ S )
                           => ( in @ ( kpair @ Xx @ Xy ) @ R ) ) ) )
                 => ( R = S ) ) ) ) ) ) ) ).

thf('0',plain,
    ( eqbreln
    = ( ! [X4: $i,X6: $i,X8: $i] :
          ( ( breln @ X4 @ X6 @ X8 )
         => ! [X10: $i] :
              ( ( breln @ X4 @ X6 @ X10 )
             => ( ! [X12: $i] :
                    ( ( in @ X12 @ X4 )
                   => ! [X14: $i] :
                        ( ( in @ X14 @ X6 )
                       => ( ( in @ ( kpair @ X12 @ X14 ) @ X8 )
                         => ( in @ ( kpair @ X12 @ X14 ) @ X10 ) ) ) )
               => ( ! [X16: $i] :
                      ( ( in @ X16 @ X4 )
                     => ! [X18: $i] :
                          ( ( in @ X18 @ X6 )
                         => ( ( in @ ( kpair @ X16 @ X18 ) @ X10 )
                           => ( in @ ( kpair @ X16 @ X18 ) @ X8 ) ) ) )
                 => ( X8 = X10 ) ) ) ) ) ) ),
    define([status(thm)]) ).

thf(funcGraphProp2,axiom,
    ( funcGraphProp2
    = ( ! [A: $i,B: $i,Xf: $i] :
          ( ( func @ A @ B @ Xf )
         => ! [Xx: $i] :
              ( ( in @ Xx @ A )
             => ! [Xy: $i] :
                  ( ( in @ Xy @ B )
                 => ( ( in @ ( kpair @ Xx @ Xy ) @ Xf )
                   => ( ( ap @ A @ B @ Xf @ Xx )
                      = Xy ) ) ) ) ) ) ) ).

thf('1',plain,
    ( funcGraphProp2
    = ( ! [X4: $i,X6: $i,X8: $i] :
          ( ( func @ X4 @ X6 @ X8 )
         => ! [X10: $i] :
              ( ( in @ X10 @ X4 )
             => ! [X12: $i] :
                  ( ( in @ X12 @ X6 )
                 => ( ( in @ ( kpair @ X10 @ X12 ) @ X8 )
                   => ( ( ap @ X4 @ X6 @ X8 @ X10 )
                      = X12 ) ) ) ) ) ) ),
    define([status(thm)]) ).

thf(funcGraphProp1,axiom,
    ( funcGraphProp1
    = ( ! [A: $i,B: $i,Xf: $i] :
          ( ( func @ A @ B @ Xf )
         => ! [Xx: $i] :
              ( ( in @ Xx @ A )
             => ( in @ ( kpair @ Xx @ ( ap @ A @ B @ Xf @ Xx ) ) @ Xf ) ) ) ) ) ).

thf('2',plain,
    ( funcGraphProp1
    = ( ! [X4: $i,X6: $i,X8: $i] :
          ( ( func @ X4 @ X6 @ X8 )
         => ! [X10: $i] :
              ( ( in @ X10 @ X4 )
             => ( in @ ( kpair @ X10 @ ( ap @ X4 @ X6 @ X8 @ X10 ) ) @ X8 ) ) ) ) ),
    define([status(thm)]) ).

thf(func,axiom,
    ( func
    = ( ^ [A: $i,B: $i,R: $i] :
          ( ( breln @ A @ B @ R )
          & ! [Xx: $i] :
              ( ( in @ Xx @ A )
             => ( ex1 @ B
                @ ^ [Xy: $i] : ( in @ ( kpair @ Xx @ Xy ) @ R ) ) ) ) ) ) ).

thf(breln,axiom,
    ( breln
    = ( ^ [A: $i,B: $i,C: $i] : ( subset @ C @ ( cartprod @ A @ B ) ) ) ) ).

thf('3',plain,
    ( breln
    = ( ^ [A: $i,B: $i,C: $i] : ( subset @ C @ ( cartprod @ A @ B ) ) ) ),
    inference(simplify_rw_rule,[status(thm)],[breln]) ).

thf('4',plain,
    ( breln
    = ( ^ [V_1: $i,V_2: $i,V_3: $i] : ( subset @ V_3 @ ( cartprod @ V_1 @ V_2 ) ) ) ),
    define([status(thm)]) ).

thf(ex1,axiom,
    ( ex1
    = ( ^ [A: $i,Xphi: $i > $o] :
          ( singleton
          @ ( dsetconstr @ A
            @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).

thf(singleton,axiom,
    ( singleton
    = ( ^ [A: $i] :
        ? [Xx: $i] :
          ( ( A
            = ( setadjoin @ Xx @ emptyset ) )
          & ( in @ Xx @ A ) ) ) ) ).

thf('5',plain,
    ( singleton
    = ( ^ [A: $i] :
        ? [Xx: $i] :
          ( ( A
            = ( setadjoin @ Xx @ emptyset ) )
          & ( in @ Xx @ A ) ) ) ),
    inference(simplify_rw_rule,[status(thm)],[singleton]) ).

thf('6',plain,
    ( singleton
    = ( ^ [V_1: $i] :
        ? [X4: $i] :
          ( ( V_1
            = ( setadjoin @ X4 @ emptyset ) )
          & ( in @ X4 @ V_1 ) ) ) ),
    define([status(thm)]) ).

thf('7',plain,
    ( ex1
    = ( ^ [A: $i,Xphi: $i > $o] :
          ( singleton
          @ ( dsetconstr @ A
            @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ),
    inference(simplify_rw_rule,[status(thm)],[ex1,'6']) ).

thf('8',plain,
    ( ex1
    = ( ^ [V_1: $i,V_2: $i > $o] :
          ( singleton
          @ ( dsetconstr @ V_1
            @ ^ [V_3: $i] : ( V_2 @ V_3 ) ) ) ) ),
    define([status(thm)]) ).

thf('9',plain,
    ( func
    = ( ^ [A: $i,B: $i,R: $i] :
          ( ( breln @ A @ B @ R )
          & ! [Xx: $i] :
              ( ( in @ Xx @ A )
             => ( ex1 @ B
                @ ^ [Xy: $i] : ( in @ ( kpair @ Xx @ Xy ) @ R ) ) ) ) ) ),
    inference(simplify_rw_rule,[status(thm)],[func,'4','8','6']) ).

thf('10',plain,
    ( func
    = ( ^ [V_1: $i,V_2: $i,V_3: $i] :
          ( ( breln @ V_1 @ V_2 @ V_3 )
          & ! [X4: $i] :
              ( ( in @ X4 @ V_1 )
             => ( ex1 @ V_2
                @ ^ [V_4: $i] : ( in @ ( kpair @ X4 @ V_4 ) @ V_3 ) ) ) ) ) ),
    define([status(thm)]) ).

thf(funcext,conjecture,
    ( funcGraphProp1
   => ( funcGraphProp2
     => ( eqbreln
       => ! [A: $i,B: $i,Xf: $i] :
            ( ( func @ A @ B @ Xf )
           => ! [Xg: $i] :
                ( ( func @ A @ B @ Xg )
               => ( ! [Xx: $i] :
                      ( ( in @ Xx @ A )
                     => ( ( ap @ A @ B @ Xf @ Xx )
                        = ( ap @ A @ B @ Xg @ Xx ) ) )
                 => ( Xf = Xg ) ) ) ) ) ) ) ).

thf(zf_stmt_0,conjecture,
    ( ! [X4: $i,X6: $i,X8: $i] :
        ( ( ! [X10: $i] :
              ( ( in @ X10 @ X4 )
             => ? [X12: $i] :
                  ( ( in @ X12
                    @ ( dsetconstr @ X6
                      @ ^ [V_2: $i] : ( in @ ( kpair @ X10 @ V_2 ) @ X8 ) ) )
                  & ( ( dsetconstr @ X6
                      @ ^ [V_1: $i] : ( in @ ( kpair @ X10 @ V_1 ) @ X8 ) )
                    = ( setadjoin @ X12 @ emptyset ) ) ) )
          & ( subset @ X8 @ ( cartprod @ X4 @ X6 ) ) )
       => ! [X14: $i] :
            ( ( in @ X14 @ X4 )
           => ( in @ ( kpair @ X14 @ ( ap @ X4 @ X6 @ X8 @ X14 ) ) @ X8 ) ) )
   => ( ! [X16: $i,X18: $i,X20: $i] :
          ( ( ! [X22: $i] :
                ( ( in @ X22 @ X16 )
               => ? [X24: $i] :
                    ( ( in @ X24
                      @ ( dsetconstr @ X18
                        @ ^ [V_4: $i] : ( in @ ( kpair @ X22 @ V_4 ) @ X20 ) ) )
                    & ( ( dsetconstr @ X18
                        @ ^ [V_3: $i] : ( in @ ( kpair @ X22 @ V_3 ) @ X20 ) )
                      = ( setadjoin @ X24 @ emptyset ) ) ) )
            & ( subset @ X20 @ ( cartprod @ X16 @ X18 ) ) )
         => ! [X26: $i] :
              ( ( in @ X26 @ X16 )
             => ! [X28: $i] :
                  ( ( in @ X28 @ X18 )
                 => ( ( in @ ( kpair @ X26 @ X28 ) @ X20 )
                   => ( ( ap @ X16 @ X18 @ X20 @ X26 )
                      = X28 ) ) ) ) )
     => ( ! [X30: $i,X32: $i,X34: $i] :
            ( ( subset @ X34 @ ( cartprod @ X30 @ X32 ) )
           => ! [X36: $i] :
                ( ( subset @ X36 @ ( cartprod @ X30 @ X32 ) )
               => ( ! [X38: $i] :
                      ( ( in @ X38 @ X30 )
                     => ! [X40: $i] :
                          ( ( in @ X40 @ X32 )
                         => ( ( in @ ( kpair @ X38 @ X40 ) @ X34 )
                           => ( in @ ( kpair @ X38 @ X40 ) @ X36 ) ) ) )
                 => ( ! [X42: $i] :
                        ( ( in @ X42 @ X30 )
                       => ! [X44: $i] :
                            ( ( in @ X44 @ X32 )
                           => ( ( in @ ( kpair @ X42 @ X44 ) @ X36 )
                             => ( in @ ( kpair @ X42 @ X44 ) @ X34 ) ) ) )
                   => ( X34 = X36 ) ) ) ) )
       => ! [X46: $i,X48: $i,X50: $i] :
            ( ( ! [X52: $i] :
                  ( ( in @ X52 @ X46 )
                 => ? [X54: $i] :
                      ( ( in @ X54
                        @ ( dsetconstr @ X48
                          @ ^ [V_6: $i] : ( in @ ( kpair @ X52 @ V_6 ) @ X50 ) ) )
                      & ( ( dsetconstr @ X48
                          @ ^ [V_5: $i] : ( in @ ( kpair @ X52 @ V_5 ) @ X50 ) )
                        = ( setadjoin @ X54 @ emptyset ) ) ) )
              & ( subset @ X50 @ ( cartprod @ X46 @ X48 ) ) )
           => ! [X56: $i] :
                ( ( ! [X58: $i] :
                      ( ( in @ X58 @ X46 )
                     => ? [X60: $i] :
                          ( ( in @ X60
                            @ ( dsetconstr @ X48
                              @ ^ [V_8: $i] : ( in @ ( kpair @ X58 @ V_8 ) @ X56 ) ) )
                          & ( ( dsetconstr @ X48
                              @ ^ [V_7: $i] : ( in @ ( kpair @ X58 @ V_7 ) @ X56 ) )
                            = ( setadjoin @ X60 @ emptyset ) ) ) )
                  & ( subset @ X56 @ ( cartprod @ X46 @ X48 ) ) )
               => ( ! [X62: $i] :
                      ( ( in @ X62 @ X46 )
                     => ( ( ap @ X46 @ X48 @ X50 @ X62 )
                        = ( ap @ X46 @ X48 @ X56 @ X62 ) ) )
                 => ( X50 = X56 ) ) ) ) ) ) ) ).

thf(zf_stmt_1,negated_conjecture,
    ~ ( ! [X4: $i,X6: $i,X8: $i] :
          ( ( ! [X10: $i] :
                ( ( in @ X10 @ X4 )
               => ? [X12: $i] :
                    ( ( in @ X12
                      @ ( dsetconstr @ X6
                        @ ^ [V_2: $i] : ( in @ ( kpair @ X10 @ V_2 ) @ X8 ) ) )
                    & ( ( dsetconstr @ X6
                        @ ^ [V_1: $i] : ( in @ ( kpair @ X10 @ V_1 ) @ X8 ) )
                      = ( setadjoin @ X12 @ emptyset ) ) ) )
            & ( subset @ X8 @ ( cartprod @ X4 @ X6 ) ) )
         => ! [X14: $i] :
              ( ( in @ X14 @ X4 )
             => ( in @ ( kpair @ X14 @ ( ap @ X4 @ X6 @ X8 @ X14 ) ) @ X8 ) ) )
     => ( ! [X16: $i,X18: $i,X20: $i] :
            ( ( ! [X22: $i] :
                  ( ( in @ X22 @ X16 )
                 => ? [X24: $i] :
                      ( ( in @ X24
                        @ ( dsetconstr @ X18
                          @ ^ [V_4: $i] : ( in @ ( kpair @ X22 @ V_4 ) @ X20 ) ) )
                      & ( ( dsetconstr @ X18
                          @ ^ [V_3: $i] : ( in @ ( kpair @ X22 @ V_3 ) @ X20 ) )
                        = ( setadjoin @ X24 @ emptyset ) ) ) )
              & ( subset @ X20 @ ( cartprod @ X16 @ X18 ) ) )
           => ! [X26: $i] :
                ( ( in @ X26 @ X16 )
               => ! [X28: $i] :
                    ( ( in @ X28 @ X18 )
                   => ( ( in @ ( kpair @ X26 @ X28 ) @ X20 )
                     => ( ( ap @ X16 @ X18 @ X20 @ X26 )
                        = X28 ) ) ) ) )
       => ( ! [X30: $i,X32: $i,X34: $i] :
              ( ( subset @ X34 @ ( cartprod @ X30 @ X32 ) )
             => ! [X36: $i] :
                  ( ( subset @ X36 @ ( cartprod @ X30 @ X32 ) )
                 => ( ! [X38: $i] :
                        ( ( in @ X38 @ X30 )
                       => ! [X40: $i] :
                            ( ( in @ X40 @ X32 )
                           => ( ( in @ ( kpair @ X38 @ X40 ) @ X34 )
                             => ( in @ ( kpair @ X38 @ X40 ) @ X36 ) ) ) )
                   => ( ! [X42: $i] :
                          ( ( in @ X42 @ X30 )
                         => ! [X44: $i] :
                              ( ( in @ X44 @ X32 )
                             => ( ( in @ ( kpair @ X42 @ X44 ) @ X36 )
                               => ( in @ ( kpair @ X42 @ X44 ) @ X34 ) ) ) )
                     => ( X34 = X36 ) ) ) ) )
         => ! [X46: $i,X48: $i,X50: $i] :
              ( ( ! [X52: $i] :
                    ( ( in @ X52 @ X46 )
                   => ? [X54: $i] :
                        ( ( in @ X54
                          @ ( dsetconstr @ X48
                            @ ^ [V_6: $i] : ( in @ ( kpair @ X52 @ V_6 ) @ X50 ) ) )
                        & ( ( dsetconstr @ X48
                            @ ^ [V_5: $i] : ( in @ ( kpair @ X52 @ V_5 ) @ X50 ) )
                          = ( setadjoin @ X54 @ emptyset ) ) ) )
                & ( subset @ X50 @ ( cartprod @ X46 @ X48 ) ) )
             => ! [X56: $i] :
                  ( ( ! [X58: $i] :
                        ( ( in @ X58 @ X46 )
                       => ? [X60: $i] :
                            ( ( in @ X60
                              @ ( dsetconstr @ X48
                                @ ^ [V_8: $i] : ( in @ ( kpair @ X58 @ V_8 ) @ X56 ) ) )
                            & ( ( dsetconstr @ X48
                                @ ^ [V_7: $i] : ( in @ ( kpair @ X58 @ V_7 ) @ X56 ) )
                              = ( setadjoin @ X60 @ emptyset ) ) ) )
                    & ( subset @ X56 @ ( cartprod @ X46 @ X48 ) ) )
                 => ( ! [X62: $i] :
                        ( ( in @ X62 @ X46 )
                       => ( ( ap @ X46 @ X48 @ X50 @ X62 )
                          = ( ap @ X46 @ X48 @ X56 @ X62 ) ) )
                   => ( X50 = X56 ) ) ) ) ) ) ),
    inference('cnf.neg',[status(esa)],[zf_stmt_0]) ).

thf(zip_derived_cl0,plain,
    ~ ( ( !!
        @ ^ [Y0: $i] :
            ( !!
            @ ^ [Y1: $i] :
                ( !!
                @ ^ [Y2: $i] :
                    ( ( ( !!
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ Y0 )
                           => ( ??
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4
                                    @ ( dsetconstr @ Y1
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                  & ( ( dsetconstr @ Y1
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                    = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                      & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
                   => ( !!
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                         => ( in @ ( kpair @ Y3 @ ( ap @ Y0 @ Y1 @ Y2 @ Y3 ) ) @ Y2 ) ) ) ) ) ) )
     => ( ( !!
          @ ^ [Y0: $i] :
              ( !!
              @ ^ [Y1: $i] :
                  ( !!
                  @ ^ [Y2: $i] :
                      ( ( ( !!
                          @ ^ [Y3: $i] :
                              ( ( in @ Y3 @ Y0 )
                             => ( ??
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4
                                      @ ( dsetconstr @ Y1
                                        @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                    & ( ( dsetconstr @ Y1
                                        @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                      = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                        & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
                     => ( !!
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ Y0 )
                           => ( !!
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y1 )
                                 => ( ( in @ ( kpair @ Y3 @ Y4 ) @ Y2 )
                                   => ( ( ap @ Y0 @ Y1 @ Y2 @ Y3 )
                                      = Y4 ) ) ) ) ) ) ) ) ) )
       => ( ( !!
            @ ^ [Y0: $i] :
                ( !!
                @ ^ [Y1: $i] :
                    ( !!
                    @ ^ [Y2: $i] :
                        ( ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) )
                       => ( !!
                          @ ^ [Y3: $i] :
                              ( ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) )
                             => ( ( !!
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y0 )
                                     => ( !!
                                        @ ^ [Y5: $i] :
                                            ( ( in @ Y5 @ Y1 )
                                           => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 )
                                             => ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 ) ) ) ) ) )
                               => ( ( !!
                                    @ ^ [Y4: $i] :
                                        ( ( in @ Y4 @ Y0 )
                                       => ( !!
                                          @ ^ [Y5: $i] :
                                              ( ( in @ Y5 @ Y1 )
                                             => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 )
                                               => ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 ) ) ) ) ) )
                                 => ( Y2 = Y3 ) ) ) ) ) ) ) ) )
         => ( !!
            @ ^ [Y0: $i] :
                ( !!
                @ ^ [Y1: $i] :
                    ( !!
                    @ ^ [Y2: $i] :
                        ( ( ( !!
                            @ ^ [Y3: $i] :
                                ( ( in @ Y3 @ Y0 )
                               => ( ??
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4
                                        @ ( dsetconstr @ Y1
                                          @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                      & ( ( dsetconstr @ Y1
                                          @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                        = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                          & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
                       => ( !!
                          @ ^ [Y3: $i] :
                              ( ( ( !!
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y0 )
                                     => ( ??
                                        @ ^ [Y5: $i] :
                                            ( ( in @ Y5
                                              @ ( dsetconstr @ Y1
                                                @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) ) )
                                            & ( ( dsetconstr @ Y1
                                                @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) )
                                              = ( setadjoin @ Y5 @ emptyset ) ) ) ) ) )
                                & ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) ) )
                             => ( ( !!
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y0 )
                                     => ( ( ap @ Y0 @ Y1 @ Y2 @ Y4 )
                                        = ( ap @ Y0 @ Y1 @ Y3 @ Y4 ) ) ) )
                               => ( Y2 = Y3 ) ) ) ) ) ) ) ) ) ) ),
    inference(cnf,[status(esa)],[zf_stmt_1]) ).

thf(zip_derived_cl2,plain,
    ~ ( ( !!
        @ ^ [Y0: $i] :
            ( !!
            @ ^ [Y1: $i] :
                ( !!
                @ ^ [Y2: $i] :
                    ( ( ( !!
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ Y0 )
                           => ( ??
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4
                                    @ ( dsetconstr @ Y1
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                  & ( ( dsetconstr @ Y1
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                    = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                      & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
                   => ( !!
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                         => ( !!
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y1 )
                               => ( ( in @ ( kpair @ Y3 @ Y4 ) @ Y2 )
                                 => ( ( ap @ Y0 @ Y1 @ Y2 @ Y3 )
                                    = Y4 ) ) ) ) ) ) ) ) ) )
     => ( ( !!
          @ ^ [Y0: $i] :
              ( !!
              @ ^ [Y1: $i] :
                  ( !!
                  @ ^ [Y2: $i] :
                      ( ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) )
                     => ( !!
                        @ ^ [Y3: $i] :
                            ( ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) )
                           => ( ( !!
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4 @ Y0 )
                                   => ( !!
                                      @ ^ [Y5: $i] :
                                          ( ( in @ Y5 @ Y1 )
                                         => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 )
                                           => ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 ) ) ) ) ) )
                             => ( ( !!
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y0 )
                                     => ( !!
                                        @ ^ [Y5: $i] :
                                            ( ( in @ Y5 @ Y1 )
                                           => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 )
                                             => ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 ) ) ) ) ) )
                               => ( Y2 = Y3 ) ) ) ) ) ) ) ) )
       => ( !!
          @ ^ [Y0: $i] :
              ( !!
              @ ^ [Y1: $i] :
                  ( !!
                  @ ^ [Y2: $i] :
                      ( ( ( !!
                          @ ^ [Y3: $i] :
                              ( ( in @ Y3 @ Y0 )
                             => ( ??
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4
                                      @ ( dsetconstr @ Y1
                                        @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                    & ( ( dsetconstr @ Y1
                                        @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                      = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                        & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
                     => ( !!
                        @ ^ [Y3: $i] :
                            ( ( ( !!
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4 @ Y0 )
                                   => ( ??
                                      @ ^ [Y5: $i] :
                                          ( ( in @ Y5
                                            @ ( dsetconstr @ Y1
                                              @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) ) )
                                          & ( ( dsetconstr @ Y1
                                              @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) )
                                            = ( setadjoin @ Y5 @ emptyset ) ) ) ) ) )
                              & ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) ) )
                           => ( ( !!
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4 @ Y0 )
                                   => ( ( ap @ Y0 @ Y1 @ Y2 @ Y4 )
                                      = ( ap @ Y0 @ Y1 @ Y3 @ Y4 ) ) ) )
                             => ( Y2 = Y3 ) ) ) ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl0]) ).

thf(zip_derived_cl5,plain,
    ~ ( ( !!
        @ ^ [Y0: $i] :
            ( !!
            @ ^ [Y1: $i] :
                ( !!
                @ ^ [Y2: $i] :
                    ( ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) )
                   => ( !!
                      @ ^ [Y3: $i] :
                          ( ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) )
                         => ( ( !!
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y0 )
                                 => ( !!
                                    @ ^ [Y5: $i] :
                                        ( ( in @ Y5 @ Y1 )
                                       => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 )
                                         => ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 ) ) ) ) ) )
                           => ( ( !!
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4 @ Y0 )
                                   => ( !!
                                      @ ^ [Y5: $i] :
                                          ( ( in @ Y5 @ Y1 )
                                         => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 )
                                           => ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 ) ) ) ) ) )
                             => ( Y2 = Y3 ) ) ) ) ) ) ) ) )
     => ( !!
        @ ^ [Y0: $i] :
            ( !!
            @ ^ [Y1: $i] :
                ( !!
                @ ^ [Y2: $i] :
                    ( ( ( !!
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ Y0 )
                           => ( ??
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4
                                    @ ( dsetconstr @ Y1
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                  & ( ( dsetconstr @ Y1
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                    = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                      & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
                   => ( !!
                      @ ^ [Y3: $i] :
                          ( ( ( !!
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y0 )
                                 => ( ??
                                    @ ^ [Y5: $i] :
                                        ( ( in @ Y5
                                          @ ( dsetconstr @ Y1
                                            @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) ) )
                                        & ( ( dsetconstr @ Y1
                                            @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) )
                                          = ( setadjoin @ Y5 @ emptyset ) ) ) ) ) )
                            & ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) ) )
                         => ( ( !!
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y0 )
                                 => ( ( ap @ Y0 @ Y1 @ Y2 @ Y4 )
                                    = ( ap @ Y0 @ Y1 @ Y3 @ Y4 ) ) ) )
                           => ( Y2 = Y3 ) ) ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl2]) ).

thf(zip_derived_cl9,plain,
    ~ ( !!
      @ ^ [Y0: $i] :
          ( !!
          @ ^ [Y1: $i] :
              ( !!
              @ ^ [Y2: $i] :
                  ( ( ( !!
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                         => ( ??
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4
                                  @ ( dsetconstr @ Y1
                                    @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                & ( ( dsetconstr @ Y1
                                    @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                  = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                    & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
                 => ( !!
                    @ ^ [Y3: $i] :
                        ( ( ( !!
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y0 )
                               => ( ??
                                  @ ^ [Y5: $i] :
                                      ( ( in @ Y5
                                        @ ( dsetconstr @ Y1
                                          @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) ) )
                                      & ( ( dsetconstr @ Y1
                                          @ ^ [Y6: $i] : ( in @ ( kpair @ Y4 @ Y6 ) @ Y3 ) )
                                        = ( setadjoin @ Y5 @ emptyset ) ) ) ) ) )
                          & ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) ) )
                       => ( ( !!
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y0 )
                               => ( ( ap @ Y0 @ Y1 @ Y2 @ Y4 )
                                  = ( ap @ Y0 @ Y1 @ Y3 @ Y4 ) ) ) )
                         => ( Y2 = Y3 ) ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl5]) ).

thf(zip_derived_cl13,plain,
    ~ ( !!
      @ ^ [Y0: $i] :
          ( !!
          @ ^ [Y1: $i] :
              ( ( ( !!
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ '#sk1' )
                     => ( ??
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3
                              @ ( dsetconstr @ Y0
                                @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) ) )
                            & ( ( dsetconstr @ Y0
                                @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) )
                              = ( setadjoin @ Y3 @ emptyset ) ) ) ) ) )
                & ( subset @ Y1 @ ( cartprod @ '#sk1' @ Y0 ) ) )
             => ( !!
                @ ^ [Y2: $i] :
                    ( ( ( !!
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ '#sk1' )
                           => ( ??
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4
                                    @ ( dsetconstr @ Y0
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                                  & ( ( dsetconstr @ Y0
                                      @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                    = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                      & ( subset @ Y2 @ ( cartprod @ '#sk1' @ Y0 ) ) )
                   => ( ( !!
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ '#sk1' )
                           => ( ( ap @ '#sk1' @ Y0 @ Y1 @ Y3 )
                              = ( ap @ '#sk1' @ Y0 @ Y2 @ Y3 ) ) ) )
                     => ( Y1 = Y2 ) ) ) ) ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl9]) ).

thf(zip_derived_cl17,plain,
    ~ ( !!
      @ ^ [Y0: $i] :
          ( ( ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ '#sk1' )
                 => ( ??
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2
                          @ ( dsetconstr @ '#sk2'
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) ) )
                        & ( ( dsetconstr @ '#sk2'
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) )
                          = ( setadjoin @ Y2 @ emptyset ) ) ) ) ) )
            & ( subset @ Y0 @ ( cartprod @ '#sk1' @ '#sk2' ) ) )
         => ( !!
            @ ^ [Y1: $i] :
                ( ( ( !!
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2 @ '#sk1' )
                       => ( ??
                          @ ^ [Y3: $i] :
                              ( ( in @ Y3
                                @ ( dsetconstr @ '#sk2'
                                  @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) ) )
                              & ( ( dsetconstr @ '#sk2'
                                  @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) )
                                = ( setadjoin @ Y3 @ emptyset ) ) ) ) ) )
                  & ( subset @ Y1 @ ( cartprod @ '#sk1' @ '#sk2' ) ) )
               => ( ( !!
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2 @ '#sk1' )
                       => ( ( ap @ '#sk1' @ '#sk2' @ Y0 @ Y2 )
                          = ( ap @ '#sk1' @ '#sk2' @ Y1 @ Y2 ) ) ) )
                 => ( Y0 = Y1 ) ) ) ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl13]) ).

thf(zip_derived_cl21,plain,
    ~ ( ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ '#sk1' )
             => ( ??
                @ ^ [Y1: $i] :
                    ( ( in @ Y1
                      @ ( dsetconstr @ '#sk2'
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk3' ) ) )
                    & ( ( dsetconstr @ '#sk2'
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk3' ) )
                      = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
        & ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) ) )
     => ( !!
        @ ^ [Y0: $i] :
            ( ( ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ '#sk1' )
                   => ( ??
                      @ ^ [Y2: $i] :
                          ( ( in @ Y2
                            @ ( dsetconstr @ '#sk2'
                              @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) ) )
                          & ( ( dsetconstr @ '#sk2'
                              @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) )
                            = ( setadjoin @ Y2 @ emptyset ) ) ) ) ) )
              & ( subset @ Y0 @ ( cartprod @ '#sk1' @ '#sk2' ) ) )
           => ( ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ '#sk1' )
                   => ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ Y1 )
                      = ( ap @ '#sk1' @ '#sk2' @ Y0 @ Y1 ) ) ) )
             => ( '#sk3' = Y0 ) ) ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl17]) ).

thf(zip_derived_cl26,plain,
    ~ ( !!
      @ ^ [Y0: $i] :
          ( ( ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ '#sk1' )
                 => ( ??
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2
                          @ ( dsetconstr @ '#sk2'
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) ) )
                        & ( ( dsetconstr @ '#sk2'
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) )
                          = ( setadjoin @ Y2 @ emptyset ) ) ) ) ) )
            & ( subset @ Y0 @ ( cartprod @ '#sk1' @ '#sk2' ) ) )
         => ( ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ '#sk1' )
                 => ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ Y1 )
                    = ( ap @ '#sk1' @ '#sk2' @ Y0 @ Y1 ) ) ) )
           => ( '#sk3' = Y0 ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl21]) ).

thf(zip_derived_cl33,plain,
    ~ ( ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ '#sk1' )
             => ( ??
                @ ^ [Y1: $i] :
                    ( ( in @ Y1
                      @ ( dsetconstr @ '#sk2'
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk5' ) ) )
                    & ( ( dsetconstr @ '#sk2'
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk5' ) )
                      = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
        & ( subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ) ) )
     => ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ '#sk1' )
             => ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ Y0 )
                = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ Y0 ) ) ) )
       => ( '#sk3' = '#sk5' ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl26]) ).

thf(zip_derived_cl40,plain,
    ( ( !!
      @ ^ [Y0: $i] :
          ( ( in @ Y0 @ '#sk1' )
         => ( ??
            @ ^ [Y1: $i] :
                ( ( in @ Y1
                  @ ( dsetconstr @ '#sk2'
                    @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk5' ) ) )
                & ( ( dsetconstr @ '#sk2'
                    @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk5' ) )
                  = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
    & ( subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl33]) ).

thf(zip_derived_cl49,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl8,plain,
    ( !!
    @ ^ [Y0: $i] :
        ( !!
        @ ^ [Y1: $i] :
            ( !!
            @ ^ [Y2: $i] :
                ( ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) )
               => ( !!
                  @ ^ [Y3: $i] :
                      ( ( subset @ Y3 @ ( cartprod @ Y0 @ Y1 ) )
                     => ( ( !!
                          @ ^ [Y4: $i] :
                              ( ( in @ Y4 @ Y0 )
                             => ( !!
                                @ ^ [Y5: $i] :
                                    ( ( in @ Y5 @ Y1 )
                                   => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 )
                                     => ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 ) ) ) ) ) )
                       => ( ( !!
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y0 )
                               => ( !!
                                  @ ^ [Y5: $i] :
                                      ( ( in @ Y5 @ Y1 )
                                     => ( ( in @ ( kpair @ Y4 @ Y5 ) @ Y3 )
                                       => ( in @ ( kpair @ Y4 @ Y5 ) @ Y2 ) ) ) ) ) )
                         => ( Y2 = Y3 ) ) ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl5]) ).

thf(zip_derived_cl12,plain,
    ! [X2: $i] :
      ( !!
      @ ^ [Y0: $i] :
          ( !!
          @ ^ [Y1: $i] :
              ( ( subset @ Y1 @ ( cartprod @ X2 @ Y0 ) )
             => ( !!
                @ ^ [Y2: $i] :
                    ( ( subset @ Y2 @ ( cartprod @ X2 @ Y0 ) )
                   => ( ( !!
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ X2 )
                           => ( !!
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y0 )
                                 => ( ( in @ ( kpair @ Y3 @ Y4 ) @ Y1 )
                                   => ( in @ ( kpair @ Y3 @ Y4 ) @ Y2 ) ) ) ) ) )
                     => ( ( !!
                          @ ^ [Y3: $i] :
                              ( ( in @ Y3 @ X2 )
                             => ( !!
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4 @ Y0 )
                                   => ( ( in @ ( kpair @ Y3 @ Y4 ) @ Y2 )
                                     => ( in @ ( kpair @ Y3 @ Y4 ) @ Y1 ) ) ) ) ) )
                       => ( Y1 = Y2 ) ) ) ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl8]) ).

thf(zip_derived_cl16,plain,
    ! [X2: $i,X4: $i] :
      ( !!
      @ ^ [Y0: $i] :
          ( ( subset @ Y0 @ ( cartprod @ X2 @ X4 ) )
         => ( !!
            @ ^ [Y1: $i] :
                ( ( subset @ Y1 @ ( cartprod @ X2 @ X4 ) )
               => ( ( !!
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2 @ X2 )
                       => ( !!
                          @ ^ [Y3: $i] :
                              ( ( in @ Y3 @ X4 )
                             => ( ( in @ ( kpair @ Y2 @ Y3 ) @ Y0 )
                               => ( in @ ( kpair @ Y2 @ Y3 ) @ Y1 ) ) ) ) ) )
                 => ( ( !!
                      @ ^ [Y2: $i] :
                          ( ( in @ Y2 @ X2 )
                         => ( !!
                            @ ^ [Y3: $i] :
                                ( ( in @ Y3 @ X4 )
                               => ( ( in @ ( kpair @ Y2 @ Y3 ) @ Y1 )
                                 => ( in @ ( kpair @ Y2 @ Y3 ) @ Y0 ) ) ) ) ) )
                   => ( Y0 = Y1 ) ) ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl12]) ).

thf(zip_derived_cl20,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
     => ( !!
        @ ^ [Y0: $i] :
            ( ( subset @ Y0 @ ( cartprod @ X2 @ X4 ) )
           => ( ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X2 )
                   => ( !!
                      @ ^ [Y2: $i] :
                          ( ( in @ Y2 @ X4 )
                         => ( ( in @ ( kpair @ Y1 @ Y2 ) @ X6 )
                           => ( in @ ( kpair @ Y1 @ Y2 ) @ Y0 ) ) ) ) ) )
             => ( ( !!
                  @ ^ [Y1: $i] :
                      ( ( in @ Y1 @ X2 )
                     => ( !!
                        @ ^ [Y2: $i] :
                            ( ( in @ Y2 @ X4 )
                           => ( ( in @ ( kpair @ Y1 @ Y2 ) @ Y0 )
                             => ( in @ ( kpair @ Y1 @ Y2 ) @ X6 ) ) ) ) ) )
               => ( X6 = Y0 ) ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl16]) ).

thf(zip_derived_cl24,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( subset @ Y0 @ ( cartprod @ X2 @ X4 ) )
           => ( ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X2 )
                   => ( !!
                      @ ^ [Y2: $i] :
                          ( ( in @ Y2 @ X4 )
                         => ( ( in @ ( kpair @ Y1 @ Y2 ) @ X6 )
                           => ( in @ ( kpair @ Y1 @ Y2 ) @ Y0 ) ) ) ) ) )
             => ( ( !!
                  @ ^ [Y1: $i] :
                      ( ( in @ Y1 @ X2 )
                     => ( !!
                        @ ^ [Y2: $i] :
                            ( ( in @ Y2 @ X4 )
                           => ( ( in @ ( kpair @ Y1 @ Y2 ) @ Y0 )
                             => ( in @ ( kpair @ Y1 @ Y2 ) @ X6 ) ) ) ) ) )
               => ( X6 = Y0 ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl20]) ).

thf(zip_derived_cl30,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
       => ( ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X2 )
               => ( !!
                  @ ^ [Y1: $i] :
                      ( ( in @ Y1 @ X4 )
                     => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                       => ( in @ ( kpair @ Y0 @ Y1 ) @ X8 ) ) ) ) ) )
         => ( ( !!
              @ ^ [Y0: $i] :
                  ( ( in @ Y0 @ X2 )
                 => ( !!
                    @ ^ [Y1: $i] :
                        ( ( in @ Y1 @ X4 )
                       => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                         => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
           => ( X6 = X8 ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl24]) ).

thf(zip_derived_cl38,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X8 ) ) ) ) ) )
       => ( ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X2 )
               => ( !!
                  @ ^ [Y1: $i] :
                      ( ( in @ Y1 @ X4 )
                     => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                       => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
         => ( X6 = X8 ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl30]) ).

thf(zip_derived_cl46,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X8 ) ) ) ) ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl38]) ).

thf(zip_derived_cl56,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 )
         => ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X4 )
               => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ Y0 ) @ X6 )
                 => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ Y0 ) @ X8 ) ) ) ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl46]) ).

thf(zip_derived_cl66,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X4 )
             => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ Y0 ) @ X6 )
               => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ Y0 ) @ X8 ) ) ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl56]) ).

thf(zip_derived_cl74,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 )
         => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X6 )
           => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X8 ) ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl66]) ).

thf(zip_derived_cl83,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X6 )
         => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X8 ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl74]) ).

thf(zip_derived_cl92,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl83]) ).

thf(zip_derived_cl99,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl92]) ).

thf(zip_derived_cl109,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X8 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl99]) ).

thf(zip_derived_cl91,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X6 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl83]) ).

thf(zip_derived_cl98,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X6 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl91]) ).

thf(zip_derived_cl105,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X6 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl98]) ).

thf(zip_derived_cl106,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( '#form10' @ X2 @ X4 @ X6 @ X8 )
      | ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) ) ),
    define([status(thm)]) ).

thf(zip_derived_cl110,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( '#form10' @ X2 @ X4 @ X6 @ X8 )
      | ~ ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(renaming,[status(thm)],[zip_derived_cl109,zip_derived_cl106]) ).

thf(zip_derived_cl25,plain,
    ( ( !!
      @ ^ [Y0: $i] :
          ( ( in @ Y0 @ '#sk1' )
         => ( ??
            @ ^ [Y1: $i] :
                ( ( in @ Y1
                  @ ( dsetconstr @ '#sk2'
                    @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk3' ) ) )
                & ( ( dsetconstr @ '#sk2'
                    @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk3' ) )
                  = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
    & ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl21]) ).

thf(zip_derived_cl32,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl31,plain,
    ( !!
    @ ^ [Y0: $i] :
        ( ( in @ Y0 @ '#sk1' )
       => ( ??
          @ ^ [Y1: $i] :
              ( ( in @ Y1
                @ ( dsetconstr @ '#sk2'
                  @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk3' ) ) )
              & ( ( dsetconstr @ '#sk2'
                  @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk3' ) )
                = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl39,plain,
    ! [X2: $i] :
      ( ( in @ X2 @ '#sk1' )
     => ( ??
        @ ^ [Y0: $i] :
            ( ( in @ Y0
              @ ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk3' ) ) )
            & ( ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk3' ) )
              = ( setadjoin @ Y0 @ emptyset ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl31]) ).

thf(zip_derived_cl47,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ??
        @ ^ [Y0: $i] :
            ( ( in @ Y0
              @ ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk3' ) ) )
            & ( ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk3' ) )
              = ( setadjoin @ Y0 @ emptyset ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl39]) ).

thf(zip_derived_cl57,plain,
    ! [X2: $i] :
      ( ( ( in @ ( '#sk7' @ X2 )
          @ ( dsetconstr @ '#sk2'
            @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk3' ) ) )
        & ( ( dsetconstr @ '#sk2'
            @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk3' ) )
          = ( setadjoin @ ( '#sk7' @ X2 ) @ emptyset ) ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl47]) ).

thf(zip_derived_cl67,plain,
    ! [X2: $i] :
      ( ( in @ ( '#sk7' @ X2 )
        @ ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk3' ) ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl57]) ).

thf(zip_derived_cl4,plain,
    ( !!
    @ ^ [Y0: $i] :
        ( !!
        @ ^ [Y1: $i] :
            ( !!
            @ ^ [Y2: $i] :
                ( ( ( !!
                    @ ^ [Y3: $i] :
                        ( ( in @ Y3 @ Y0 )
                       => ( ??
                          @ ^ [Y4: $i] :
                              ( ( in @ Y4
                                @ ( dsetconstr @ Y1
                                  @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                              & ( ( dsetconstr @ Y1
                                  @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                  & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
               => ( !!
                  @ ^ [Y3: $i] :
                      ( ( in @ Y3 @ Y0 )
                     => ( !!
                        @ ^ [Y4: $i] :
                            ( ( in @ Y4 @ Y1 )
                           => ( ( in @ ( kpair @ Y3 @ Y4 ) @ Y2 )
                             => ( ( ap @ Y0 @ Y1 @ Y2 @ Y3 )
                                = Y4 ) ) ) ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl2]) ).

thf(zip_derived_cl7,plain,
    ! [X2: $i] :
      ( !!
      @ ^ [Y0: $i] :
          ( !!
          @ ^ [Y1: $i] :
              ( ( ( !!
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ X2 )
                     => ( ??
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3
                              @ ( dsetconstr @ Y0
                                @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) ) )
                            & ( ( dsetconstr @ Y0
                                @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) )
                              = ( setadjoin @ Y3 @ emptyset ) ) ) ) ) )
                & ( subset @ Y1 @ ( cartprod @ X2 @ Y0 ) ) )
             => ( !!
                @ ^ [Y2: $i] :
                    ( ( in @ Y2 @ X2 )
                   => ( !!
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                         => ( ( in @ ( kpair @ Y2 @ Y3 ) @ Y1 )
                           => ( ( ap @ X2 @ Y0 @ Y1 @ Y2 )
                              = Y3 ) ) ) ) ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl4]) ).

thf(zip_derived_cl11,plain,
    ! [X2: $i,X4: $i] :
      ( !!
      @ ^ [Y0: $i] :
          ( ( ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X2 )
                 => ( ??
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2
                          @ ( dsetconstr @ X4
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) ) )
                        & ( ( dsetconstr @ X4
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) )
                          = ( setadjoin @ Y2 @ emptyset ) ) ) ) ) )
            & ( subset @ Y0 @ ( cartprod @ X2 @ X4 ) ) )
         => ( !!
            @ ^ [Y1: $i] :
                ( ( in @ Y1 @ X2 )
               => ( !!
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ X4 )
                     => ( ( in @ ( kpair @ Y1 @ Y2 ) @ Y0 )
                       => ( ( ap @ X2 @ X4 @ Y0 @ Y1 )
                          = Y2 ) ) ) ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl7]) ).

thf(zip_derived_cl15,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( ??
                @ ^ [Y1: $i] :
                    ( ( in @ Y1
                      @ ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) ) )
                    & ( ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) )
                      = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
        & ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) )
     => ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl11]) ).

thf(zip_derived_cl19,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X2 )
               => ( ??
                  @ ^ [Y1: $i] :
                      ( ( in @ Y1
                        @ ( dsetconstr @ X4
                          @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) ) )
                      & ( ( dsetconstr @ X4
                          @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) )
                        = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
          & ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl15]) ).

thf(zip_derived_cl23,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( ??
                @ ^ [Y1: $i] :
                    ( ( in @ Y1
                      @ ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) ) )
                    & ( ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) )
                      = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl19]) ).

thf(zip_derived_cl29,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
         => ( ??
            @ ^ [Y0: $i] :
                ( ( in @ Y0
                  @ ( dsetconstr @ X4
                    @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) ) )
                & ( ( dsetconstr @ X4
                    @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) )
                  = ( setadjoin @ Y0 @ emptyset ) ) ) ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl23]) ).

thf(zip_derived_cl37,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( ??
          @ ^ [Y0: $i] :
              ( ( in @ Y0
                @ ( dsetconstr @ X4
                  @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) ) )
              & ( ( dsetconstr @ X4
                  @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) )
                = ( setadjoin @ Y0 @ emptyset ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl29]) ).

thf(zip_derived_cl45,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ X8
            @ ( dsetconstr @ X4
              @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
          & ( ( dsetconstr @ X4
              @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
            = ( setadjoin @ X8 @ emptyset ) ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl37]) ).

thf(zip_derived_cl55,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl45]) ).

thf(zip_derived_cl63,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl55]) ).

thf(zip_derived_cl64,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ( ( in @ X10 @ X2 )
       => ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X4 )
             => ( ( in @ ( kpair @ X10 @ Y0 ) @ X6 )
               => ( ( ap @ X2 @ X4 @ X6 @ X10 )
                  = Y0 ) ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl63]) ).

thf(zip_derived_cl72,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ~ ( in @ X10 @ X2 )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X4 )
           => ( ( in @ ( kpair @ X10 @ Y0 ) @ X6 )
             => ( ( ap @ X2 @ X4 @ X6 @ X10 )
                = Y0 ) ) ) )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl64]) ).

thf(zip_derived_cl79,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i,X12: $i] :
      ( ( ( in @ X12 @ X4 )
       => ( ( in @ ( kpair @ X10 @ X12 ) @ X6 )
         => ( ( ap @ X2 @ X4 @ X6 @ X10 )
            = X12 ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ~ ( in @ X10 @ X2 ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl72]) ).

thf(zip_derived_cl87,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i,X12: $i] :
      ( ~ ( in @ X12 @ X4 )
      | ( ( in @ ( kpair @ X10 @ X12 ) @ X6 )
       => ( ( ap @ X2 @ X4 @ X6 @ X10 )
          = X12 ) )
      | ~ ( in @ X10 @ X2 )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl79]) ).

thf(zip_derived_cl94,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i,X12: $i] :
      ( ~ ( in @ ( kpair @ X10 @ X12 ) @ X6 )
      | ( ( ap @ X2 @ X4 @ X6 @ X10 )
        = X12 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ~ ( in @ X10 @ X2 )
      | ~ ( in @ X12 @ X4 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl87]) ).

thf(zip_derived_cl100,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i,X12: $i] :
      ( ~ ( in @ ( kpair @ X10 @ X12 ) @ X6 )
      | ( ( ap @ X2 @ X4 @ X6 @ X10 )
        = X12 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ~ ( in @ X10 @ X2 )
      | ~ ( in @ X12 @ X4 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl94]) ).

thf(zip_derived_cl304,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ~ ( in @ X1 @ '#sk2' )
      | ~ ( in @ X2 @ X0 )
      | ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) @ Y0 ) @ '#sk3' ) )
       != ( setadjoin @ ( '#sk7' @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) ) @ emptyset ) )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X0 @ '#sk2' ) )
      | ( ( ap @ X0 @ '#sk2' @ '#sk3' @ X2 )
        = X1 )
      | ~ ( in @ ( kpair @ X2 @ X1 ) @ '#sk3' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl67,zip_derived_cl100]) ).

thf(zip_derived_cl68,plain,
    ! [X2: $i] :
      ( ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk3' ) )
        = ( setadjoin @ ( '#sk7' @ X2 ) @ emptyset ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl57]) ).

thf(zip_derived_cl75,plain,
    ! [X2: $i] :
      ( ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk3' ) )
        = ( setadjoin @ ( '#sk7' @ X2 ) @ emptyset ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl68]) ).

thf(zip_derived_cl630,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( kpair @ X2 @ X1 ) @ '#sk3' )
      | ( ( ap @ X0 @ '#sk2' @ '#sk3' @ X2 )
        = X1 )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X0 @ '#sk2' ) )
      | ~ ( in @ X2 @ X0 )
      | ~ ( in @ X1 @ '#sk2' )
      | ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) @ '#sk1' ) ),
    inference(clc,[status(thm)],[zip_derived_cl304,zip_derived_cl75]) ).

thf(zip_derived_cl631,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk2' )
      | ~ ( in @ X1 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X1 )
        = X0 )
      | ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk3' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl32,zip_derived_cl630]) ).

thf(zip_derived_cl32_001,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl36,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X4 )
                 => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X6 )
                   => ( ( ap @ X2 @ X4 @ X6 @ Y0 )
                      = Y1 ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl29]) ).

thf(zip_derived_cl44,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( ( in @ X8 @ X2 )
       => ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X4 )
             => ( ( in @ ( kpair @ X8 @ Y0 ) @ X6 )
               => ( ( ap @ X2 @ X4 @ X6 @ X8 )
                  = Y0 ) ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl36]) ).

thf(zip_derived_cl54,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ X8 @ X2 )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X4 )
           => ( ( in @ ( kpair @ X8 @ Y0 ) @ X6 )
             => ( ( ap @ X2 @ X4 @ X6 @ X8 )
                = Y0 ) ) ) )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl44]) ).

thf(zip_derived_cl62,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ( ( in @ X10 @ X4 )
       => ( ( in @ ( kpair @ X8 @ X10 ) @ X6 )
         => ( ( ap @ X2 @ X4 @ X6 @ X8 )
            = X10 ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( in @ X8 @ X2 ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl54]) ).

thf(zip_derived_cl71,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ~ ( in @ X10 @ X4 )
      | ( ( in @ ( kpair @ X8 @ X10 ) @ X6 )
       => ( ( ap @ X2 @ X4 @ X6 @ X8 )
          = X10 ) )
      | ~ ( in @ X8 @ X2 )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl62]) ).

thf(zip_derived_cl78,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ~ ( in @ ( kpair @ X8 @ X10 ) @ X6 )
      | ( ( ap @ X2 @ X4 @ X6 @ X8 )
        = X10 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( in @ X8 @ X2 )
      | ~ ( in @ X10 @ X4 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl71]) ).

thf(zip_derived_cl86,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ~ ( in @ ( kpair @ X8 @ X10 ) @ X6 )
      | ( ( ap @ X2 @ X4 @ X6 @ X8 )
        = X10 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( in @ X8 @ X2 )
      | ~ ( in @ X10 @ X4 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl78]) ).

thf(zip_derived_cl185,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ X0 @ '#sk2' )
      | ~ ( in @ X1 @ '#sk1' )
      | ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X1 )
        = X0 )
      | ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk3' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl32,zip_derived_cl86]) ).

thf(zip_derived_cl635,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk3' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X1 )
        = X0 )
      | ~ ( in @ X1 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk2' ) ),
    inference(clc,[status(thm)],[zip_derived_cl631,zip_derived_cl185]) ).

thf(zip_derived_cl105_002,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X6 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl98]) ).

thf(zip_derived_cl106_003,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( '#form10' @ X2 @ X4 @ X6 @ X8 )
      | ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) ) ),
    define([status(thm)]) ).

thf(zip_derived_cl108,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( '#form10' @ X2 @ X4 @ X6 @ X8 )
      | ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) ) @ X6 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(renaming,[status(thm)],[zip_derived_cl105,zip_derived_cl106]) ).

thf(zip_derived_cl642,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk3' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk3' @ X0 ) @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ ( '#sk6' @ X2 @ X1 @ '#sk3' @ X0 ) )
        = ( '#sk8' @ X2 @ X1 @ '#sk3' @ X0 ) )
      | ( '#sk3' = X0 )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X2 @ X1 ) )
      | ~ ( subset @ X0 @ ( cartprod @ X2 @ X1 ) )
      | ~ ( '#form10' @ X2 @ X1 @ '#sk3' @ X0 ) ),
    inference('sup+',[status(thm)],[zip_derived_cl635,zip_derived_cl108]) ).

thf(zip_derived_cl41,plain,
    ~ ( ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ '#sk1' )
           => ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ Y0 )
              = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ Y0 ) ) ) )
     => ( '#sk3' = '#sk5' ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl33]) ).

thf(zip_derived_cl50,plain,
    ( !!
    @ ^ [Y0: $i] :
        ( ( in @ Y0 @ '#sk1' )
       => ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ Y0 )
          = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ Y0 ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl41]) ).

thf(zip_derived_cl59,plain,
    ! [X2: $i] :
      ( ( in @ X2 @ '#sk1' )
     => ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl50]) ).

thf(zip_derived_cl70,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl59]) ).

thf(zip_derived_cl77,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl70]) ).

thf(zip_derived_cl77_004,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl70]) ).

thf(zip_derived_cl77_005,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl70]) ).

thf(zip_derived_cl48,plain,
    ( !!
    @ ^ [Y0: $i] :
        ( ( in @ Y0 @ '#sk1' )
       => ( ??
          @ ^ [Y1: $i] :
              ( ( in @ Y1
                @ ( dsetconstr @ '#sk2'
                  @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk5' ) ) )
              & ( ( dsetconstr @ '#sk2'
                  @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ '#sk5' ) )
                = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl58,plain,
    ! [X2: $i] :
      ( ( in @ X2 @ '#sk1' )
     => ( ??
        @ ^ [Y0: $i] :
            ( ( in @ Y0
              @ ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk5' ) ) )
            & ( ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk5' ) )
              = ( setadjoin @ Y0 @ emptyset ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl48]) ).

thf(zip_derived_cl69,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ??
        @ ^ [Y0: $i] :
            ( ( in @ Y0
              @ ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk5' ) ) )
            & ( ( dsetconstr @ '#sk2'
                @ ^ [Y1: $i] : ( in @ ( kpair @ X2 @ Y1 ) @ '#sk5' ) )
              = ( setadjoin @ Y0 @ emptyset ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl58]) ).

thf(zip_derived_cl76,plain,
    ! [X2: $i] :
      ( ( ( in @ ( '#sk9' @ X2 )
          @ ( dsetconstr @ '#sk2'
            @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk5' ) ) )
        & ( ( dsetconstr @ '#sk2'
            @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk5' ) )
          = ( setadjoin @ ( '#sk9' @ X2 ) @ emptyset ) ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl69]) ).

thf(zip_derived_cl84,plain,
    ! [X2: $i] :
      ( ( in @ ( '#sk9' @ X2 )
        @ ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk5' ) ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl76]) ).

thf(zip_derived_cl1,plain,
    ( !!
    @ ^ [Y0: $i] :
        ( !!
        @ ^ [Y1: $i] :
            ( !!
            @ ^ [Y2: $i] :
                ( ( ( !!
                    @ ^ [Y3: $i] :
                        ( ( in @ Y3 @ Y0 )
                       => ( ??
                          @ ^ [Y4: $i] :
                              ( ( in @ Y4
                                @ ( dsetconstr @ Y1
                                  @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) ) )
                              & ( ( dsetconstr @ Y1
                                  @ ^ [Y5: $i] : ( in @ ( kpair @ Y3 @ Y5 ) @ Y2 ) )
                                = ( setadjoin @ Y4 @ emptyset ) ) ) ) ) )
                  & ( subset @ Y2 @ ( cartprod @ Y0 @ Y1 ) ) )
               => ( !!
                  @ ^ [Y3: $i] :
                      ( ( in @ Y3 @ Y0 )
                     => ( in @ ( kpair @ Y3 @ ( ap @ Y0 @ Y1 @ Y2 @ Y3 ) ) @ Y2 ) ) ) ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl0]) ).

thf(zip_derived_cl3,plain,
    ! [X2: $i] :
      ( !!
      @ ^ [Y0: $i] :
          ( !!
          @ ^ [Y1: $i] :
              ( ( ( !!
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ X2 )
                     => ( ??
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3
                              @ ( dsetconstr @ Y0
                                @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) ) )
                            & ( ( dsetconstr @ Y0
                                @ ^ [Y4: $i] : ( in @ ( kpair @ Y2 @ Y4 ) @ Y1 ) )
                              = ( setadjoin @ Y3 @ emptyset ) ) ) ) ) )
                & ( subset @ Y1 @ ( cartprod @ X2 @ Y0 ) ) )
             => ( !!
                @ ^ [Y2: $i] :
                    ( ( in @ Y2 @ X2 )
                   => ( in @ ( kpair @ Y2 @ ( ap @ X2 @ Y0 @ Y1 @ Y2 ) ) @ Y1 ) ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl1]) ).

thf(zip_derived_cl6,plain,
    ! [X2: $i,X4: $i] :
      ( !!
      @ ^ [Y0: $i] :
          ( ( ( !!
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X2 )
                 => ( ??
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2
                          @ ( dsetconstr @ X4
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) ) )
                        & ( ( dsetconstr @ X4
                            @ ^ [Y3: $i] : ( in @ ( kpair @ Y1 @ Y3 ) @ Y0 ) )
                          = ( setadjoin @ Y2 @ emptyset ) ) ) ) ) )
            & ( subset @ Y0 @ ( cartprod @ X2 @ X4 ) ) )
         => ( !!
            @ ^ [Y1: $i] :
                ( ( in @ Y1 @ X2 )
               => ( in @ ( kpair @ Y1 @ ( ap @ X2 @ X4 @ Y0 @ Y1 ) ) @ Y0 ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl3]) ).

thf(zip_derived_cl10,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( ??
                @ ^ [Y1: $i] :
                    ( ( in @ Y1
                      @ ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) ) )
                    & ( ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) )
                      = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
        & ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) )
     => ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl6]) ).

thf(zip_derived_cl14,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X2 )
               => ( ??
                  @ ^ [Y1: $i] :
                      ( ( in @ Y1
                        @ ( dsetconstr @ X4
                          @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) ) )
                      & ( ( dsetconstr @ X4
                          @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) )
                        = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
          & ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl10]) ).

thf(zip_derived_cl18,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( ??
                @ ^ [Y1: $i] :
                    ( ( in @ Y1
                      @ ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) ) )
                    & ( ( dsetconstr @ X4
                        @ ^ [Y2: $i] : ( in @ ( kpair @ Y0 @ Y2 ) @ X6 ) )
                      = ( setadjoin @ Y1 @ emptyset ) ) ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl14]) ).

thf(zip_derived_cl22,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
         => ( ??
            @ ^ [Y0: $i] :
                ( ( in @ Y0
                  @ ( dsetconstr @ X4
                    @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) ) )
                & ( ( dsetconstr @ X4
                    @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) )
                  = ( setadjoin @ Y0 @ emptyset ) ) ) ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl18]) ).

thf(zip_derived_cl28,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ~ ( ??
          @ ^ [Y0: $i] :
              ( ( in @ Y0
                @ ( dsetconstr @ X4
                  @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) ) )
              & ( ( dsetconstr @ X4
                  @ ^ [Y1: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y1 ) @ X6 ) )
                = ( setadjoin @ Y0 @ emptyset ) ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl22]) ).

thf(zip_derived_cl35,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ X8
            @ ( dsetconstr @ X4
              @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
          & ( ( dsetconstr @ X4
              @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
            = ( setadjoin @ X8 @ emptyset ) ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl28]) ).

thf(zip_derived_cl43,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl35]) ).

thf(zip_derived_cl52,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl43]) ).

thf(zip_derived_cl53,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ( ( in @ X10 @ X2 )
       => ( in @ ( kpair @ X10 @ ( ap @ X2 @ X4 @ X6 @ X10 ) ) @ X6 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl52]) ).

thf(zip_derived_cl61,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ~ ( in @ X10 @ X2 )
      | ( in @ ( kpair @ X10 @ ( ap @ X2 @ X4 @ X6 @ X10 ) ) @ X6 )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl53]) ).

thf(zip_derived_cl151,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X0 @ '#sk2' ) )
      | ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) @ Y0 ) @ '#sk5' ) )
       != ( setadjoin @ ( '#sk9' @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) ) @ emptyset ) )
      | ( in @ ( kpair @ X1 @ ( ap @ X0 @ '#sk2' @ '#sk5' @ X1 ) ) @ '#sk5' )
      | ~ ( in @ X1 @ X0 ) ),
    inference('sup-',[status(thm)],[zip_derived_cl84,zip_derived_cl61]) ).

thf(zip_derived_cl85,plain,
    ! [X2: $i] :
      ( ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk5' ) )
        = ( setadjoin @ ( '#sk9' @ X2 ) @ emptyset ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl76]) ).

thf(zip_derived_cl93,plain,
    ! [X2: $i] :
      ( ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk5' ) )
        = ( setadjoin @ ( '#sk9' @ X2 ) @ emptyset ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl85]) ).

thf(zip_derived_cl155,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ X1 @ X0 )
      | ( in @ ( kpair @ X1 @ ( ap @ X0 @ '#sk2' @ '#sk5' @ X1 ) ) @ '#sk5' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X0 @ '#sk2' ) )
      | ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) @ '#sk1' ) ),
    inference(clc,[status(thm)],[zip_derived_cl151,zip_derived_cl93]) ).

thf(zip_derived_cl156,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk5' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ) )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl77,zip_derived_cl155]) ).

thf(zip_derived_cl49_006,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl158,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk5' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference(demod,[status(thm)],[zip_derived_cl156,zip_derived_cl49]) ).

thf(zip_derived_cl159,plain,
    ! [X0: $i] :
      ( ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl158]) ).

thf(zip_derived_cl171,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk5' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl77,zip_derived_cl159]) ).

thf(zip_derived_cl173,plain,
    ! [X0: $i] :
      ( ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl171]) ).

thf(zip_derived_cl49_007,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl27,plain,
    ! [X2: $i,X4: $i,X6: $i] :
      ( ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( !!
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
           => ( in @ ( kpair @ Y0 @ ( ap @ X2 @ X4 @ X6 @ Y0 ) ) @ X6 ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl22]) ).

thf(zip_derived_cl34,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( ( in @ X8 @ X2 )
       => ( in @ ( kpair @ X8 @ ( ap @ X2 @ X4 @ X6 @ X8 ) ) @ X6 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl27]) ).

thf(zip_derived_cl42,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ X8 @ X2 )
      | ( in @ ( kpair @ X8 @ ( ap @ X2 @ X4 @ X6 @ X8 ) ) @ X6 )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl34]) ).

thf(zip_derived_cl127,plain,
    ! [X0: $i] :
      ( ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk5' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl42]) ).

thf(zip_derived_cl175,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk5' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference(clc,[status(thm)],[zip_derived_cl173,zip_derived_cl127]) ).

thf(zip_derived_cl176,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk5' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl77,zip_derived_cl175]) ).

thf(zip_derived_cl178,plain,
    ! [X0: $i] :
      ( ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl176]) ).

thf(zip_derived_cl1432,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X1 @ '#sk3' @ X0 ) @ ( '#sk8' @ X2 @ X1 @ '#sk3' @ X0 ) ) @ '#sk5' )
      | ~ ( '#form10' @ X2 @ X1 @ '#sk3' @ X0 )
      | ~ ( subset @ X0 @ ( cartprod @ X2 @ X1 ) )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X2 @ X1 ) )
      | ( '#sk3' = X0 )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk3' @ X0 ) @ '#sk1' )
      | ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk3' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk3' @ X0 ) @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl642,zip_derived_cl178]) ).

thf(zip_derived_cl1442,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk3' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk3' @ X0 ) @ '#sk1' )
      | ( '#sk3' = X0 )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X2 @ X1 ) )
      | ~ ( subset @ X0 @ ( cartprod @ X2 @ X1 ) )
      | ~ ( '#form10' @ X2 @ X1 @ '#sk3' @ X0 )
      | ( in @ ( kpair @ ( '#sk6' @ X2 @ X1 @ '#sk3' @ X0 ) @ ( '#sk8' @ X2 @ X1 @ '#sk3' @ X0 ) ) @ '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl1432]) ).

thf(zip_derived_cl1466,plain,
    ! [X0: $i,X1: $i] :
      ( ( '#sk3' = '#sk5' )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X1 @ X0 ) )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X1 @ X0 ) )
      | ~ ( '#form10' @ X1 @ X0 @ '#sk3' @ '#sk5' )
      | ~ ( '#form10' @ X1 @ X0 @ '#sk3' @ '#sk5' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X1 @ X0 ) )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X1 @ X0 ) )
      | ( '#sk3' = '#sk5' )
      | ~ ( in @ ( '#sk6' @ X1 @ X0 @ '#sk3' @ '#sk5' ) @ '#sk1' )
      | ~ ( in @ ( '#sk8' @ X1 @ X0 @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl110,zip_derived_cl1442]) ).

thf(zip_derived_cl1483,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( '#sk8' @ X1 @ X0 @ '#sk3' @ '#sk5' ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X1 @ X0 @ '#sk3' @ '#sk5' ) @ '#sk1' )
      | ~ ( '#form10' @ X1 @ X0 @ '#sk3' @ '#sk5' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X1 @ X0 ) )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X1 @ X0 ) )
      | ( '#sk3' = '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl1466]) ).

thf(zip_derived_cl51,plain,
    '#sk3' != '#sk5',
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl41]) ).

thf(zip_derived_cl60,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl1484,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( '#sk8' @ X1 @ X0 @ '#sk3' @ '#sk5' ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X1 @ X0 @ '#sk3' @ '#sk5' ) @ '#sk1' )
      | ~ ( '#form10' @ X1 @ X0 @ '#sk3' @ '#sk5' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X1 @ X0 ) )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X1 @ X0 ) ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl1483,zip_derived_cl60]) ).

thf(zip_derived_cl1509,plain,
    ( ~ ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ~ ( '#form10' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' )
    | ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ~ ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl1484]) ).

thf(zip_derived_cl32_008,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl106_009,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( '#form10' @ X2 @ X4 @ X6 @ X8 )
      | ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) ) ),
    define([status(thm)]) ).

thf(zip_derived_cl107,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ X2 )
         => ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X4 )
               => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X8 )
                 => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X6 ) ) ) ) )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl106]) ).

thf(zip_derived_cl114,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ X2 )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl107]) ).

thf(zip_derived_cl115,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X4 )
             => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X8 )
               => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X6 ) ) ) )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl107]) ).

thf(zip_derived_cl118,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) @ X4 )
         => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
           => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 ) ) )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl115]) ).

thf(zip_derived_cl121,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) @ X4 )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl118]) ).

thf(zip_derived_cl122,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
         => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 ) )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl118]) ).

thf(zip_derived_cl124,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl122]) ).

thf(zip_derived_cl49_010,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl84_011,plain,
    ! [X2: $i] :
      ( ( in @ ( '#sk9' @ X2 )
        @ ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk5' ) ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl76]) ).

thf(zip_derived_cl100_012,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i,X12: $i] :
      ( ~ ( in @ ( kpair @ X10 @ X12 ) @ X6 )
      | ( ( ap @ X2 @ X4 @ X6 @ X10 )
        = X12 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ~ ( in @ X10 @ X2 )
      | ~ ( in @ X12 @ X4 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl94]) ).

thf(zip_derived_cl302,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ~ ( in @ X1 @ '#sk2' )
      | ~ ( in @ X2 @ X0 )
      | ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) @ Y0 ) @ '#sk5' ) )
       != ( setadjoin @ ( '#sk9' @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) ) @ emptyset ) )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X0 @ '#sk2' ) )
      | ( ( ap @ X0 @ '#sk2' @ '#sk5' @ X2 )
        = X1 )
      | ~ ( in @ ( kpair @ X2 @ X1 ) @ '#sk5' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl84,zip_derived_cl100]) ).

thf(zip_derived_cl93_013,plain,
    ! [X2: $i] :
      ( ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk5' ) )
        = ( setadjoin @ ( '#sk9' @ X2 ) @ emptyset ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl85]) ).

thf(zip_derived_cl541,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( kpair @ X2 @ X1 ) @ '#sk5' )
      | ( ( ap @ X0 @ '#sk2' @ '#sk5' @ X2 )
        = X1 )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X0 @ '#sk2' ) )
      | ~ ( in @ X2 @ X0 )
      | ~ ( in @ X1 @ '#sk2' )
      | ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk5' ) @ '#sk1' ) ),
    inference(clc,[status(thm)],[zip_derived_cl302,zip_derived_cl93]) ).

thf(zip_derived_cl542,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk2' )
      | ~ ( in @ X1 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X1 )
        = X0 )
      | ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk5' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl541]) ).

thf(zip_derived_cl49_014,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl86_015,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ~ ( in @ ( kpair @ X8 @ X10 ) @ X6 )
      | ( ( ap @ X2 @ X4 @ X6 @ X8 )
        = X10 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( in @ X8 @ X2 )
      | ~ ( in @ X10 @ X4 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl78]) ).

thf(zip_derived_cl184,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ X0 @ '#sk2' )
      | ~ ( in @ X1 @ '#sk1' )
      | ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk5' ) @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X1 )
        = X0 )
      | ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk5' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl86]) ).

thf(zip_derived_cl544,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk5' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X1 )
        = X0 )
      | ~ ( in @ X1 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk2' ) ),
    inference(clc,[status(thm)],[zip_derived_cl542,zip_derived_cl184]) ).

thf(zip_derived_cl123,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
      | ( '#form10' @ X2 @ X4 @ X6 @ X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl122]) ).

thf(zip_derived_cl548,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) )
        = ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) )
      | ( '#form10' @ X2 @ X1 @ X0 @ '#sk5' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl544,zip_derived_cl123]) ).

thf(zip_derived_cl77_016,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl70]) ).

thf(zip_derived_cl77_017,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl70]) ).

thf(zip_derived_cl77_018,plain,
    ! [X2: $i] :
      ( ~ ( in @ X2 @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X2 )
        = ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X2 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl70]) ).

thf(zip_derived_cl67_019,plain,
    ! [X2: $i] :
      ( ( in @ ( '#sk7' @ X2 )
        @ ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk3' ) ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl57]) ).

thf(zip_derived_cl61_020,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i,X10: $i] :
      ( ~ ( in @ X10 @ X2 )
      | ( in @ ( kpair @ X10 @ ( ap @ X2 @ X4 @ X6 @ X10 ) ) @ X6 )
      | ~ ( in @ X8
          @ ( dsetconstr @ X4
            @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) ) )
      | ( ( dsetconstr @ X4
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X2 @ X4 @ X6 ) @ Y0 ) @ X6 ) )
       != ( setadjoin @ X8 @ emptyset ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl53]) ).

thf(zip_derived_cl153,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X0 @ '#sk2' ) )
      | ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) @ Y0 ) @ '#sk3' ) )
       != ( setadjoin @ ( '#sk7' @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) ) @ emptyset ) )
      | ( in @ ( kpair @ X1 @ ( ap @ X0 @ '#sk2' @ '#sk3' @ X1 ) ) @ '#sk3' )
      | ~ ( in @ X1 @ X0 ) ),
    inference('sup-',[status(thm)],[zip_derived_cl67,zip_derived_cl61]) ).

thf(zip_derived_cl75_021,plain,
    ! [X2: $i] :
      ( ( ( dsetconstr @ '#sk2'
          @ ^ [Y0: $i] : ( in @ ( kpair @ X2 @ Y0 ) @ '#sk3' ) )
        = ( setadjoin @ ( '#sk7' @ X2 ) @ emptyset ) )
      | ~ ( in @ X2 @ '#sk1' ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl68]) ).

thf(zip_derived_cl188,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ X1 @ X0 )
      | ( in @ ( kpair @ X1 @ ( ap @ X0 @ '#sk2' @ '#sk3' @ X1 ) ) @ '#sk3' )
      | ~ ( subset @ '#sk3' @ ( cartprod @ X0 @ '#sk2' ) )
      | ~ ( in @ ( '#sk4' @ X0 @ '#sk2' @ '#sk3' ) @ '#sk1' ) ),
    inference(clc,[status(thm)],[zip_derived_cl153,zip_derived_cl75]) ).

thf(zip_derived_cl189,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk3' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ~ ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl77,zip_derived_cl188]) ).

thf(zip_derived_cl32_022,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl191,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk3' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference(demod,[status(thm)],[zip_derived_cl189,zip_derived_cl32]) ).

thf(zip_derived_cl192,plain,
    ! [X0: $i] :
      ( ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk3' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl191]) ).

thf(zip_derived_cl207,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk3' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl77,zip_derived_cl192]) ).

thf(zip_derived_cl209,plain,
    ! [X0: $i] :
      ( ~ ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk3' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl207]) ).

thf(zip_derived_cl32_023,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl42_024,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ X8 @ X2 )
      | ( in @ ( kpair @ X8 @ ( ap @ X2 @ X4 @ X6 @ X8 ) ) @ X6 )
      | ( in @ ( '#sk4' @ X2 @ X4 @ X6 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl34]) ).

thf(zip_derived_cl128,plain,
    ! [X0: $i] :
      ( ( in @ ( '#sk4' @ '#sk1' @ '#sk2' @ '#sk3' ) @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk3' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl32,zip_derived_cl42]) ).

thf(zip_derived_cl212,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) ) @ '#sk3' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference(clc,[status(thm)],[zip_derived_cl209,zip_derived_cl128]) ).

thf(zip_derived_cl213,plain,
    ! [X0: $i] :
      ( ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk3' )
      | ~ ( in @ X0 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl77,zip_derived_cl212]) ).

thf(zip_derived_cl215,plain,
    ! [X0: $i] :
      ( ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk3' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl213]) ).

thf(zip_derived_cl699,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) ) @ '#sk3' )
      | ( '#form10' @ X2 @ X1 @ X0 @ '#sk5' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk1' )
      | ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl548,zip_derived_cl215]) ).

thf(zip_derived_cl709,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk1' )
      | ( '#form10' @ X2 @ X1 @ X0 @ '#sk5' )
      | ( in @ ( kpair @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) ) @ '#sk3' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl699]) ).

thf(zip_derived_cl735,plain,
    ! [X0: $i,X1: $i] :
      ( ( '#form10' @ X1 @ X0 @ '#sk3' @ '#sk5' )
      | ( '#form10' @ X1 @ X0 @ '#sk3' @ '#sk5' )
      | ~ ( in @ ( '#sk6' @ X1 @ X0 @ '#sk5' @ '#sk3' ) @ '#sk1' )
      | ~ ( in @ ( '#sk8' @ X1 @ X0 @ '#sk5' @ '#sk3' ) @ '#sk2' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl124,zip_derived_cl709]) ).

thf(zip_derived_cl750,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( '#sk8' @ X1 @ X0 @ '#sk5' @ '#sk3' ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X1 @ X0 @ '#sk5' @ '#sk3' ) @ '#sk1' )
      | ( '#form10' @ X1 @ X0 @ '#sk3' @ '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl735]) ).

thf(zip_derived_cl775,plain,
    ! [X0: $i] :
      ( ( '#form10' @ X0 @ '#sk2' @ '#sk3' @ '#sk5' )
      | ( '#form10' @ X0 @ '#sk2' @ '#sk3' @ '#sk5' )
      | ~ ( in @ ( '#sk6' @ X0 @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl121,zip_derived_cl750]) ).

thf(zip_derived_cl779,plain,
    ! [X0: $i] :
      ( ~ ( in @ ( '#sk6' @ X0 @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
      | ( '#form10' @ X0 @ '#sk2' @ '#sk3' @ '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl775]) ).

thf(zip_derived_cl786,plain,
    ( ( '#form10' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' )
    | ( '#form10' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl114,zip_derived_cl779]) ).

thf(zip_derived_cl793,plain,
    '#form10' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5',
    inference(simplify,[status(thm)],[zip_derived_cl786]) ).

thf(zip_derived_cl65,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl56]) ).

thf(zip_derived_cl73,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl65]) ).

thf(zip_derived_cl80,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl73]) ).

thf(zip_derived_cl81,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ X2 )
         => ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X4 )
               => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X8 )
                 => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X6 ) ) ) ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl80]) ).

thf(zip_derived_cl89,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X4 )
             => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X8 )
               => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X6 ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl81]) ).

thf(zip_derived_cl95,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) @ X4 )
         => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
           => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 ) ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl89]) ).

thf(zip_derived_cl102,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
         => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl95]) ).

thf(zip_derived_cl112,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl102]) ).

thf(zip_derived_cl32_025,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl49_026,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl101,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) @ X4 )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl95]) ).

thf(zip_derived_cl309,plain,
    ! [X0: $i] :
      ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ X0 @ '#sk5' ) @ '#sk1' )
      | ~ ( subset @ X0 @ ( cartprod @ '#sk1' @ '#sk2' ) )
      | ( X0 = '#sk5' )
      | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) @ '#sk2' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl101]) ).

thf(zip_derived_cl334,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk2' )
    | ( '#sk3' = '#sk5' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl32,zip_derived_cl309]) ).

thf(zip_derived_cl60_027,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl339,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk2' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl334,zip_derived_cl60]) ).

thf(zip_derived_cl544_028,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk5' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X1 )
        = X0 )
      | ~ ( in @ X1 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk2' ) ),
    inference(clc,[status(thm)],[zip_derived_cl542,zip_derived_cl184]) ).

thf(zip_derived_cl111,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl102]) ).

thf(zip_derived_cl550,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) )
        = ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) )
      | ( X0 = '#sk5' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X2 @ X1 ) )
      | ~ ( subset @ X0 @ ( cartprod @ X2 @ X1 ) )
      | ( in @ ( '#sk6' @ X2 @ X1 @ X0 @ '#sk5' ) @ X2 ) ),
    inference('sup+',[status(thm)],[zip_derived_cl544,zip_derived_cl111]) ).

thf(zip_derived_cl1213,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ~ ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ~ ( subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ( '#sk3' = '#sk5' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl339,zip_derived_cl550]) ).

thf(zip_derived_cl32_029,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl49_030,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl1217,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( '#sk3' = '#sk5' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference(demod,[status(thm)],[zip_derived_cl1213,zip_derived_cl32,zip_derived_cl49]) ).

thf(zip_derived_cl1218,plain,
    ( ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ( '#sk3' = '#sk5' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl1217]) ).

thf(zip_derived_cl60_031,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl1219,plain,
    ( ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl1218,zip_derived_cl60]) ).

thf(zip_derived_cl32_032,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl49_033,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl88,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ X2 )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl81]) ).

thf(zip_derived_cl222,plain,
    ! [X0: $i] :
      ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ X0 @ '#sk5' ) @ '#sk1' )
      | ~ ( subset @ X0 @ ( cartprod @ '#sk1' @ '#sk2' ) )
      | ( X0 = '#sk5' )
      | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl88]) ).

thf(zip_derived_cl287,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
    | ( '#sk3' = '#sk5' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl32,zip_derived_cl222]) ).

thf(zip_derived_cl60_034,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl293,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl287,zip_derived_cl60]) ).

thf(zip_derived_cl1230,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) ) ),
    inference(clc,[status(thm)],[zip_derived_cl1219,zip_derived_cl293]) ).

thf(zip_derived_cl215_035,plain,
    ! [X0: $i] :
      ( ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk3' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl213]) ).

thf(zip_derived_cl1231,plain,
    ( ( in @ ( kpair @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) ) @ '#sk3' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl1230,zip_derived_cl215]) ).

thf(zip_derived_cl293_036,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl287,zip_derived_cl60]) ).

thf(zip_derived_cl1247,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( in @ ( kpair @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) ) @ '#sk3' ) ),
    inference(clc,[status(thm)],[zip_derived_cl1231,zip_derived_cl293]) ).

thf(zip_derived_cl1256,plain,
    ( ( '#sk3' = '#sk5' )
    | ~ ( subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ~ ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl112,zip_derived_cl1247]) ).

thf(zip_derived_cl49_037,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl32_038,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl1271,plain,
    ( ( '#sk3' = '#sk5' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' ) ),
    inference(demod,[status(thm)],[zip_derived_cl1256,zip_derived_cl49,zip_derived_cl32]) ).

thf(zip_derived_cl1272,plain,
    ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1' )
    | ( '#sk3' = '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl1271]) ).

thf(zip_derived_cl60_039,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl1273,plain,
    in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk1',
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl1272,zip_derived_cl60]) ).

thf(zip_derived_cl82,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 )
      | ( ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
       => ( X6 = X8 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl74]) ).

thf(zip_derived_cl90,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl82]) ).

thf(zip_derived_cl96,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
             => ( !!
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ X4 )
                   => ( ( in @ ( kpair @ Y0 @ Y1 ) @ X8 )
                     => ( in @ ( kpair @ Y0 @ Y1 ) @ X6 ) ) ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl90]) ).

thf(zip_derived_cl97,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ X2 )
         => ( !!
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ X4 )
               => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X8 )
                 => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X6 ) ) ) ) )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl96]) ).

thf(zip_derived_cl104,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( !!
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X4 )
             => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X8 )
               => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ Y0 ) @ X6 ) ) ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl97]) ).

thf(zip_derived_cl113,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) @ X4 )
         => ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
           => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 ) ) )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_exists,[status(thm)],[zip_derived_cl104]) ).

thf(zip_derived_cl117,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
         => ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 ) )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl113]) ).

thf(zip_derived_cl120,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ~ ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X6 )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl117]) ).

thf(zip_derived_cl32_040,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl49_041,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl116,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) @ X4 )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl113]) ).

thf(zip_derived_cl379,plain,
    ! [X0: $i] :
      ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ X0 @ '#sk5' ) @ '#sk2' )
      | ~ ( subset @ X0 @ ( cartprod @ '#sk1' @ '#sk2' ) )
      | ( X0 = '#sk5' )
      | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) @ '#sk2' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl116]) ).

thf(zip_derived_cl470,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk2' )
    | ( '#sk3' = '#sk5' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl32,zip_derived_cl379]) ).

thf(zip_derived_cl60_042,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl476,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk2' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl470,zip_derived_cl60]) ).

thf(zip_derived_cl544_043,plain,
    ! [X0: $i,X1: $i] :
      ( ~ ( in @ ( kpair @ X1 @ X0 ) @ '#sk5' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X1 )
        = X0 )
      | ~ ( in @ X1 @ '#sk1' )
      | ~ ( in @ X0 @ '#sk2' ) ),
    inference(clc,[status(thm)],[zip_derived_cl542,zip_derived_cl184]) ).

thf(zip_derived_cl119,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( kpair @ ( '#sk6' @ X2 @ X4 @ X8 @ X6 ) @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) ) @ X8 )
      | ( in @ ( '#sk8' @ X2 @ X4 @ X6 @ X8 ) @ X4 )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ( X6 = X8 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl117]) ).

thf(zip_derived_cl549,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ( in @ ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk2' )
      | ~ ( in @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) @ '#sk1' )
      | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ X2 @ X1 @ '#sk5' @ X0 ) )
        = ( '#sk8' @ X2 @ X1 @ '#sk5' @ X0 ) )
      | ( X0 = '#sk5' )
      | ~ ( subset @ '#sk5' @ ( cartprod @ X2 @ X1 ) )
      | ~ ( subset @ X0 @ ( cartprod @ X2 @ X1 ) )
      | ( in @ ( '#sk8' @ X2 @ X1 @ X0 @ '#sk5' ) @ X1 ) ),
    inference('sup+',[status(thm)],[zip_derived_cl544,zip_derived_cl119]) ).

thf(zip_derived_cl1123,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ~ ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ~ ( subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ( '#sk3' = '#sk5' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl476,zip_derived_cl549]) ).

thf(zip_derived_cl32_044,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl49_045,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl1129,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( '#sk3' = '#sk5' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference(demod,[status(thm)],[zip_derived_cl1123,zip_derived_cl32,zip_derived_cl49]) ).

thf(zip_derived_cl1130,plain,
    ( ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ( '#sk3' = '#sk5' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl1129]) ).

thf(zip_derived_cl60_046,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl1131,plain,
    ( ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl1130,zip_derived_cl60]) ).

thf(zip_derived_cl49_047,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl32_048,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl101_049,plain,
    ! [X2: $i,X4: $i,X6: $i,X8: $i] :
      ( ( in @ ( '#sk8' @ X2 @ X4 @ X8 @ X6 ) @ X4 )
      | ( X6 = X8 )
      | ~ ( subset @ X8 @ ( cartprod @ X2 @ X4 ) )
      | ~ ( subset @ X6 @ ( cartprod @ X2 @ X4 ) )
      | ( in @ ( '#sk6' @ X2 @ X4 @ X6 @ X8 ) @ X2 ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl95]) ).

thf(zip_derived_cl310,plain,
    ! [X0: $i] :
      ( ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ X0 @ '#sk3' ) @ '#sk1' )
      | ~ ( subset @ X0 @ ( cartprod @ '#sk1' @ '#sk2' ) )
      | ( X0 = '#sk3' )
      | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ X0 ) @ '#sk2' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl32,zip_derived_cl101]) ).

thf(zip_derived_cl389,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( '#sk5' = '#sk3' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('sup-',[status(thm)],[zip_derived_cl49,zip_derived_cl310]) ).

thf(zip_derived_cl60_050,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl395,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl389,zip_derived_cl60]) ).

thf(zip_derived_cl1139,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) )
      = ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) ) ),
    inference(clc,[status(thm)],[zip_derived_cl1131,zip_derived_cl395]) ).

thf(zip_derived_cl215_051,plain,
    ! [X0: $i] :
      ( ~ ( in @ X0 @ '#sk1' )
      | ( in @ ( kpair @ X0 @ ( ap @ '#sk1' @ '#sk2' @ '#sk5' @ X0 ) ) @ '#sk3' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl213]) ).

thf(zip_derived_cl1140,plain,
    ( ( in @ ( kpair @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) ) @ '#sk3' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ~ ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl1139,zip_derived_cl215]) ).

thf(zip_derived_cl395_052,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( in @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ '#sk1' ) ),
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl389,zip_derived_cl60]) ).

thf(zip_derived_cl1156,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( in @ ( kpair @ ( '#sk6' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk5' @ '#sk3' ) ) @ '#sk3' ) ),
    inference(clc,[status(thm)],[zip_derived_cl1140,zip_derived_cl395]) ).

thf(zip_derived_cl1164,plain,
    ( ( '#sk3' = '#sk5' )
    | ~ ( subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ~ ( subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ) )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference('sup+',[status(thm)],[zip_derived_cl120,zip_derived_cl1156]) ).

thf(zip_derived_cl49_053,plain,
    subset @ '#sk5' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl40]) ).

thf(zip_derived_cl32_054,plain,
    subset @ '#sk3' @ ( cartprod @ '#sk1' @ '#sk2' ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl25]) ).

thf(zip_derived_cl1178,plain,
    ( ( '#sk3' = '#sk5' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' ) ),
    inference(demod,[status(thm)],[zip_derived_cl1164,zip_derived_cl49,zip_derived_cl32]) ).

thf(zip_derived_cl1179,plain,
    ( ( in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2' )
    | ( '#sk3' = '#sk5' ) ),
    inference(simplify,[status(thm)],[zip_derived_cl1178]) ).

thf(zip_derived_cl60_055,plain,
    '#sk3' != '#sk5',
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl51]) ).

thf(zip_derived_cl1180,plain,
    in @ ( '#sk8' @ '#sk1' @ '#sk2' @ '#sk3' @ '#sk5' ) @ '#sk2',
    inference('simplify_reflect-',[status(thm)],[zip_derived_cl1179,zip_derived_cl60]) ).

thf(zip_derived_cl1511,plain,
    $false,
    inference(demod,[status(thm)],[zip_derived_cl1509,zip_derived_cl32,zip_derived_cl793,zip_derived_cl1273,zip_derived_cl1180]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13  % Problem  : SEU691^2 : TPTP v8.1.2. Released v3.7.0.
% 0.00/0.14  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.OebLUwYxvx true
% 0.14/0.35  % Computer : n015.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 300
% 0.14/0.35  % DateTime : Thu Aug 24 02:03:20 EDT 2023
% 0.14/0.36  % CPUTime  : 
% 0.14/0.36  % Running portfolio for 300 s
% 0.14/0.36  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.14/0.36  % Number of cores: 8
% 0.14/0.36  % Python version: Python 3.6.8
% 0.14/0.36  % Running in HO mode
% 0.23/0.69  % Total configuration time : 828
% 0.23/0.69  % Estimated wc time : 1656
% 0.23/0.69  % Estimated cpu time (8 cpus) : 207.0
% 0.23/0.75  % /export/starexec/sandbox/solver/bin/lams/40_c.s.sh running for 80s
% 0.23/0.77  % /export/starexec/sandbox/solver/bin/lams/40_c_ic.sh running for 80s
% 0.23/0.78  % /export/starexec/sandbox/solver/bin/lams/35_full_unif4.sh running for 80s
% 0.23/0.78  % /export/starexec/sandbox/solver/bin/lams/15_e_short1.sh running for 30s
% 0.23/0.78  % /export/starexec/sandbox/solver/bin/lams/40_b.comb.sh running for 70s
% 1.34/0.78  % /export/starexec/sandbox/solver/bin/lams/40_noforms.sh running for 90s
% 1.34/0.79  % /export/starexec/sandbox/solver/bin/lams/20_acsne_simpl.sh running for 40s
% 1.34/0.81  % /export/starexec/sandbox/solver/bin/lams/30_sp5.sh running for 60s
% 9.01/1.78  % Solved by lams/30_sp5.sh.
% 9.01/1.78  % done 354 iterations in 0.851s
% 9.01/1.78  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 9.01/1.78  % SZS output start Refutation
% See solution above
% 9.01/1.79  
% 9.01/1.79  
% 9.01/1.79  % Terminating...
% 9.60/1.90  % Runner terminated.
% 9.60/1.91  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------