TPTP Problem File: DAT138^1.p

View Solutions - Solve Problem

%------------------------------------------------------------------------------
% File     : DAT138^1 : TPTP v8.2.0. Released v7.0.0.
% Domain   : Data Structures
% Problem  : Coinductive list 5031
% Version  : [Bla16] axioms : Especial.
% English  :

% Refs     : [Loc10] Lochbihler (2010), Coinductive
%          : [RB15]  Reynolds & Blanchette (2015), A Decision Procedure for
%          : [Bla16] Blanchette (2016), Email to Geoff Sutcliffe
% Source   : [Bla16]
% Names    : coinductive_list__5031.p [Bla16]

% Status   : Theorem
% Rating   : 0.00 v7.2.0, 0.25 v7.1.0
% Syntax   : Number of formulae    :  306 ( 164 unt;  49 typ;   0 def)
%            Number of atoms       :  623 ( 427 equ;   0 cnn)
%            Maximal formula atoms :   11 (   2 avg)
%            Number of connectives : 3522 ( 117   ~;  24   |;  64   &;3088   @)
%                                         (   0 <=>; 229  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   34 (   7 avg)
%            Number of types       :    3 (   2 usr)
%            Number of type conns  :  181 ( 181   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   50 (  47 usr;   3 con; 0-5 aty)
%            Number of variables   : 1028 (  23   ^; 907   !;  51   ?;1028   :)
%                                         (  47  !>;   0  ?*;   0  @-;   0  @+)
% SPC      : TH1_THM_EQU_NAR

% Comments : This file was generated by Isabelle (most likely Sledgehammer)
%            2016-07-13 15:10:27.734
%------------------------------------------------------------------------------
%----Could-be-implicit typings (5)
thf(ty_t_Coinductive__List__Mirabelle__kmikjhschf_Ollist,type,
    coindu1593790203_llist: $tType > $tType ).

thf(ty_t_List_Olist,type,
    list: $tType > $tType ).

thf(ty_t_Nat_Onat,type,
    nat: $tType ).

thf(ty_t_itself,type,
    itself: $tType > $tType ).

thf(ty_tf_a,type,
    a: $tType ).

%----Explicit typings (44)
thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Ofinite__lprefix,type,
    coindu1571841457prefix: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > ( coindu1593790203_llist @ A ) > $o ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Oinf__llist,type,
    coindu288502823_llist: 
      !>[A: $tType] : ( ( nat > A ) > ( coindu1593790203_llist @ A ) ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Oiterates,type,
    coindu1529956631erates: 
      !>[A: $tType] : ( ( A > A ) > A > ( coindu1593790203_llist @ A ) ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olappend,type,
    coindu268472904append: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > ( coindu1593790203_llist @ A ) > ( coindu1593790203_llist @ A ) ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olfinite,type,
    coindu1213758845finite: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > $o ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olist__of,type,
    coindu1736001939ist_of: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > ( list @ A ) ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olist__of__aux,type,
    coindu1542816657of_aux: 
      !>[A: $tType] : ( ( list @ A ) > ( coindu1593790203_llist @ A ) > ( list @ A ) ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Ollast,type,
    coindu2000965700_llast: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > A ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Ollist_OLCons,type,
    coindu1121789889_LCons: 
      !>[A: $tType] : ( A > ( coindu1593790203_llist @ A ) > ( coindu1593790203_llist @ A ) ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Ollist_OLNil,type,
    coindu1598213697e_LNil: 
      !>[A: $tType] : ( coindu1593790203_llist @ A ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Ollist_Olnull,type,
    coindu335574135_lnull: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > $o ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Ollist__of,type,
    coindu1079202755ist_of: 
      !>[A: $tType] : ( ( list @ A ) > ( coindu1593790203_llist @ A ) ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olmember,type,
    coindu567634248member: 
      !>[A: $tType] : ( A > ( coindu1593790203_llist @ A ) > $o ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olnth,type,
    coindu749330388e_lnth: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > nat > A ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olprefix,type,
    coindu1696667936prefix: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > ( coindu1593790203_llist @ A ) > $o ) ).

thf(sy_c_Coinductive__List__Mirabelle__kmikjhschf_Olstrict__prefix,type,
    coindu574146665prefix: 
      !>[A: $tType] : ( ( coindu1593790203_llist @ A ) > ( coindu1593790203_llist @ A ) > $o ) ).

thf(sy_c_HOL_Oundefined,type,
    undefined: 
      !>[A: $tType] : A ).

thf(sy_c_If,type,
    if: 
      !>[A: $tType] : ( $o > A > A > A ) ).

thf(sy_c_List_Oappend,type,
    append: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ A ) > ( list @ A ) ) ).

thf(sy_c_List_Obind,type,
    bind: 
      !>[A: $tType,B: $tType] : ( ( list @ A ) > ( A > ( list @ B ) ) > ( list @ B ) ) ).

thf(sy_c_List_Obutlast,type,
    butlast: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ A ) ) ).

thf(sy_c_List_Oinsert,type,
    insert: 
      !>[A: $tType] : ( A > ( list @ A ) > ( list @ A ) ) ).

thf(sy_c_List_Olast,type,
    last: 
      !>[A: $tType] : ( ( list @ A ) > A ) ).

thf(sy_c_List_Olist_OCons,type,
    cons: 
      !>[A: $tType] : ( A > ( list @ A ) > ( list @ A ) ) ).

thf(sy_c_List_Olist_ONil,type,
    nil: 
      !>[A: $tType] : ( list @ A ) ).

thf(sy_c_List_Olist_Omap,type,
    map: 
      !>[A: $tType,Aa: $tType] : ( ( A > Aa ) > ( list @ A ) > ( list @ Aa ) ) ).

thf(sy_c_List_Olist__ex1,type,
    list_ex1: 
      !>[A: $tType] : ( ( A > $o ) > ( list @ A ) > $o ) ).

thf(sy_c_List_Omap__tailrec,type,
    map_tailrec: 
      !>[A: $tType,B: $tType] : ( ( A > B ) > ( list @ A ) > ( list @ B ) ) ).

thf(sy_c_List_Omap__tailrec__rev,type,
    map_tailrec_rev: 
      !>[A: $tType,B: $tType] : ( ( A > B ) > ( list @ A ) > ( list @ B ) > ( list @ B ) ) ).

thf(sy_c_List_Omaps,type,
    maps: 
      !>[A: $tType,B: $tType] : ( ( A > ( list @ B ) ) > ( list @ A ) > ( list @ B ) ) ).

thf(sy_c_List_Onth,type,
    nth: 
      !>[A: $tType] : ( ( list @ A ) > nat > A ) ).

thf(sy_c_List_Oord_Olexordp__eq,type,
    lexordp_eq: 
      !>[A: $tType] : ( ( A > A > $o ) > ( list @ A ) > ( list @ A ) > $o ) ).

thf(sy_c_List_Oproduct__lists,type,
    product_lists: 
      !>[A: $tType] : ( ( list @ ( list @ A ) ) > ( list @ ( list @ A ) ) ) ).

thf(sy_c_List_Orev,type,
    rev: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ A ) ) ).

thf(sy_c_List_Orotate1,type,
    rotate1: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ A ) ) ).

thf(sy_c_List_Osublists,type,
    sublists: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ ( list @ A ) ) ) ).

thf(sy_c_Nat_Osize__class_Osize,type,
    size_size: 
      !>[A: $tType] : ( A > nat ) ).

thf(sy_c_Pure_Otype,type,
    type: 
      !>[A: $tType] : ( itself @ A ) ).

thf(sy_c_Sublist_Oprefixes,type,
    prefixes: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ ( list @ A ) ) ) ).

thf(sy_c_Sublist_Oprefixes__rel,type,
    prefixes_rel: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ A ) > $o ) ).

thf(sy_c_Sublist_Ostrict__suffix,type,
    strict_suffix: 
      !>[A: $tType] : ( ( list @ A ) > ( list @ A ) > $o ) ).

thf(sy_c_Wellfounded_Oaccp,type,
    accp: 
      !>[A: $tType] : ( ( A > A > $o ) > A > $o ) ).

thf(sy_v_f,type,
    f: nat > a ).

thf(sy_v_xs,type,
    xs: coindu1593790203_llist @ a ).

%----Relevant facts (253)
thf(fact_0_inf__llist__inj,axiom,
    ! [A: $tType,F: nat > A,G: nat > A] :
      ( ( ( coindu288502823_llist @ A @ F )
        = ( coindu288502823_llist @ A @ G ) )
      = ( F = G ) ) ).

% inf_llist_inj
thf(fact_1_lappend__assoc,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A,Zs: coindu1593790203_llist @ A] :
      ( ( coindu268472904append @ A @ ( coindu268472904append @ A @ Xs @ Ys ) @ Zs )
      = ( coindu268472904append @ A @ Xs @ ( coindu268472904append @ A @ Ys @ Zs ) ) ) ).

% lappend_assoc
thf(fact_2_inf__llist__lprefix,axiom,
    ! [A: $tType,F: nat > A,Xs: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ ( coindu288502823_llist @ A @ F ) @ Xs )
      = ( Xs
        = ( coindu288502823_llist @ A @ F ) ) ) ).

% inf_llist_lprefix
thf(fact_3_lnth__inf__llist,axiom,
    ! [A: $tType,F: nat > A,N: nat] :
      ( ( coindu749330388e_lnth @ A @ ( coindu288502823_llist @ A @ F ) @ N )
      = ( F @ N ) ) ).

% lnth_inf_llist
thf(fact_4_lappend__code_I1_J,axiom,
    ! [A: $tType,Ys: coindu1593790203_llist @ A] :
      ( ( coindu268472904append @ A @ ( coindu1598213697e_LNil @ A ) @ Ys )
      = Ys ) ).

% lappend_code(1)
thf(fact_5_lappend__LNil2,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( coindu268472904append @ A @ Xs @ ( coindu1598213697e_LNil @ A ) )
      = Xs ) ).

% lappend_LNil2
thf(fact_6_inf__llist__neq__llist__of_I1_J,axiom,
    ! [A: $tType,Xs: list @ A,F: nat > A] :
      ( ( coindu1079202755ist_of @ A @ Xs )
     != ( coindu288502823_llist @ A @ F ) ) ).

% inf_llist_neq_llist_of(1)
thf(fact_7_llist__exhaust,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ! [Ys2: list @ A] :
          ( Xs
         != ( coindu1079202755ist_of @ A @ Ys2 ) )
     => ~ ! [F2: nat > A] :
            ( Xs
           != ( coindu288502823_llist @ A @ F2 ) ) ) ).

% llist_exhaust
thf(fact_8_lappend__iterates,axiom,
    ! [A: $tType,F: A > A,X: A,Xs: coindu1593790203_llist @ A] :
      ( ( coindu268472904append @ A @ ( coindu1529956631erates @ A @ F @ X ) @ Xs )
      = ( coindu1529956631erates @ A @ F @ X ) ) ).

% lappend_iterates
thf(fact_9_lappend__code_I2_J,axiom,
    ! [A: $tType,Xa: A,X: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu268472904append @ A @ ( coindu1121789889_LCons @ A @ Xa @ X ) @ Ys )
      = ( coindu1121789889_LCons @ A @ Xa @ ( coindu268472904append @ A @ X @ Ys ) ) ) ).

% lappend_code(2)
thf(fact_10_lappend_Odisc__iff_I2_J,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( ~ ( coindu335574135_lnull @ A @ ( coindu268472904append @ A @ Xs @ Ys ) ) )
      = ( ~ ( coindu335574135_lnull @ A @ Xs )
        | ~ ( coindu335574135_lnull @ A @ Ys ) ) ) ).

% lappend.disc_iff(2)
thf(fact_11_lnull__lappend,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ ( coindu268472904append @ A @ Xs @ Ys ) )
      = ( ( coindu335574135_lnull @ A @ Xs )
        & ( coindu335574135_lnull @ A @ Ys ) ) ) ).

% lnull_lappend
thf(fact_12_inf__llist__neq__LNil,axiom,
    ! [A: $tType,F: nat > A] :
      ( ( coindu288502823_llist @ A @ F )
     != ( coindu1598213697e_LNil @ A ) ) ).

% inf_llist_neq_LNil
thf(fact_13_lfinite__lappend,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1213758845finite @ A @ ( coindu268472904append @ A @ Xs @ Ys ) )
      = ( ( coindu1213758845finite @ A @ Xs )
        & ( coindu1213758845finite @ A @ Ys ) ) ) ).

% lfinite_lappend
thf(fact_14_lprefix__refl,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] : ( coindu1696667936prefix @ A @ Xs @ Xs ) ).

% lprefix_refl
thf(fact_15_llist_Oleq__refl,axiom,
    ! [A: $tType,X: coindu1593790203_llist @ A] : ( coindu1696667936prefix @ A @ X @ X ) ).

% llist.leq_refl
thf(fact_16_llist_Oinject,axiom,
    ! [A: $tType,X21: A,X22: coindu1593790203_llist @ A,Y21: A,Y22: coindu1593790203_llist @ A] :
      ( ( ( coindu1121789889_LCons @ A @ X21 @ X22 )
        = ( coindu1121789889_LCons @ A @ Y21 @ Y22 ) )
      = ( ( X21 = Y21 )
        & ( X22 = Y22 ) ) ) ).

% llist.inject
thf(fact_17_llist__of__inject,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( coindu1079202755ist_of @ A @ Xs )
        = ( coindu1079202755ist_of @ A @ Ys ) )
      = ( Xs = Ys ) ) ).

% llist_of_inject
thf(fact_18_LCons__lprefix__LCons,axiom,
    ! [A: $tType,X: A,Xs: coindu1593790203_llist @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) @ ( coindu1121789889_LCons @ A @ Y @ Ys ) )
      = ( ( X = Y )
        & ( coindu1696667936prefix @ A @ Xs @ Ys ) ) ) ).

% LCons_lprefix_LCons
thf(fact_19_lprefix__code_I1_J,axiom,
    ! [A: $tType,Ys: coindu1593790203_llist @ A] : ( coindu1696667936prefix @ A @ ( coindu1598213697e_LNil @ A ) @ Ys ) ).

% lprefix_code(1)
thf(fact_20_lfinite__code_I2_J,axiom,
    ! [B: $tType,X: B,Xs: coindu1593790203_llist @ B] :
      ( ( coindu1213758845finite @ B @ ( coindu1121789889_LCons @ B @ X @ Xs ) )
      = ( coindu1213758845finite @ B @ Xs ) ) ).

% lfinite_code(2)
thf(fact_21_lfinite__LCons,axiom,
    ! [A: $tType,X: A,Xs: coindu1593790203_llist @ A] :
      ( ( coindu1213758845finite @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) )
      = ( coindu1213758845finite @ A @ Xs ) ) ).

% lfinite_LCons
thf(fact_22_lfinite__code_I1_J,axiom,
    ! [A: $tType] : ( coindu1213758845finite @ A @ ( coindu1598213697e_LNil @ A ) ) ).

% lfinite_code(1)
thf(fact_23_lprefix__LNil,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ ( coindu1598213697e_LNil @ A ) )
      = ( coindu335574135_lnull @ A @ Xs ) ) ).

% lprefix_LNil
thf(fact_24_lprefix__lappend__same,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A,Zs: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ ( coindu268472904append @ A @ Xs @ Ys ) @ ( coindu268472904append @ A @ Xs @ Zs ) )
      = ( ( coindu1213758845finite @ A @ Xs )
       => ( coindu1696667936prefix @ A @ Ys @ Zs ) ) ) ).

% lprefix_lappend_same
thf(fact_25_inf__llist__lnth,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ~ ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu288502823_llist @ A @ ( coindu749330388e_lnth @ A @ Xs ) )
        = Xs ) ) ).

% inf_llist_lnth
thf(fact_26_llist_Odisc_I2_J,axiom,
    ! [A: $tType,X21: A,X22: coindu1593790203_llist @ A] :
      ~ ( coindu335574135_lnull @ A @ ( coindu1121789889_LCons @ A @ X21 @ X22 ) ) ).

% llist.disc(2)
thf(fact_27_llist_Odisc_I1_J,axiom,
    ! [A: $tType] : ( coindu335574135_lnull @ A @ ( coindu1598213697e_LNil @ A ) ) ).

% llist.disc(1)
thf(fact_28_llist_OdiscI_I2_J,axiom,
    ! [A: $tType,Llist: coindu1593790203_llist @ A,X21: A,X22: coindu1593790203_llist @ A] :
      ( ( Llist
        = ( coindu1121789889_LCons @ A @ X21 @ X22 ) )
     => ~ ( coindu335574135_lnull @ A @ Llist ) ) ).

% llist.discI(2)
thf(fact_29_llist_OdiscI_I1_J,axiom,
    ! [A: $tType,Llist: coindu1593790203_llist @ A] :
      ( ( Llist
        = ( coindu1598213697e_LNil @ A ) )
     => ( coindu335574135_lnull @ A @ Llist ) ) ).

% llist.discI(1)
thf(fact_30_lprefix__code_I2_J,axiom,
    ! [A: $tType,X: A,Xs: coindu1593790203_llist @ A] :
      ~ ( coindu1696667936prefix @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) @ ( coindu1598213697e_LNil @ A ) ) ).

% lprefix_code(2)
thf(fact_31_llist_Ocollapse_I1_J,axiom,
    ! [A: $tType,Llist: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Llist )
     => ( Llist
        = ( coindu1598213697e_LNil @ A ) ) ) ).

% llist.collapse(1)
thf(fact_32_llist_Odistinct_I1_J,axiom,
    ! [A: $tType,X21: A,X22: coindu1593790203_llist @ A] :
      ( ( coindu1598213697e_LNil @ A )
     != ( coindu1121789889_LCons @ A @ X21 @ X22 ) ) ).

% llist.distinct(1)
thf(fact_33_lzip_Oexhaust,axiom,
    ! [A: $tType,B: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ B] :
      ( ~ ( ( coindu335574135_lnull @ A @ Xs )
          | ( coindu335574135_lnull @ B @ Ys ) )
     => ~ ( ~ ( coindu335574135_lnull @ A @ Xs )
         => ( coindu335574135_lnull @ B @ Ys ) ) ) ).

% lzip.exhaust
thf(fact_34_iterates_Ocode,axiom,
    ! [A: $tType] :
      ( ( coindu1529956631erates @ A )
      = ( ^ [F3: A > A,X2: A] : ( coindu1121789889_LCons @ A @ X2 @ ( coindu1529956631erates @ A @ F3 @ ( F3 @ X2 ) ) ) ) ) ).

% iterates.code
thf(fact_35_lfinite_Ocases,axiom,
    ! [A: $tType,A2: coindu1593790203_llist @ A] :
      ( ( coindu1213758845finite @ A @ A2 )
     => ( ( A2
         != ( coindu1598213697e_LNil @ A ) )
       => ~ ! [Xs2: coindu1593790203_llist @ A] :
              ( ? [X3: A] :
                  ( A2
                  = ( coindu1121789889_LCons @ A @ X3 @ Xs2 ) )
             => ~ ( coindu1213758845finite @ A @ Xs2 ) ) ) ) ).

% lfinite.cases
thf(fact_36_lfinite_Osimps,axiom,
    ! [A: $tType] :
      ( ( coindu1213758845finite @ A )
      = ( ^ [A3: coindu1593790203_llist @ A] :
            ( ( A3
              = ( coindu1598213697e_LNil @ A ) )
            | ? [Xs3: coindu1593790203_llist @ A,X2: A] :
                ( ( A3
                  = ( coindu1121789889_LCons @ A @ X2 @ Xs3 ) )
                & ( coindu1213758845finite @ A @ Xs3 ) ) ) ) ) ).

% lfinite.simps
thf(fact_37_llist_Oexhaust,axiom,
    ! [A: $tType,Y: coindu1593790203_llist @ A] :
      ( ( Y
       != ( coindu1598213697e_LNil @ A ) )
     => ~ ! [X212: A,X222: coindu1593790203_llist @ A] :
            ( Y
           != ( coindu1121789889_LCons @ A @ X212 @ X222 ) ) ) ).

% llist.exhaust
thf(fact_38_lnull__lprefix,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Xs )
     => ( coindu1696667936prefix @ A @ Xs @ Ys ) ) ).

% lnull_lprefix
thf(fact_39_lprefix_Ocases,axiom,
    ! [A: $tType,A1: coindu1593790203_llist @ A,A22: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ A1 @ A22 )
     => ( ( ( A1
            = ( coindu1598213697e_LNil @ A ) )
         => ! [Xs2: coindu1593790203_llist @ A] : A22 != Xs2 )
       => ~ ! [Xs2: coindu1593790203_llist @ A,Ys2: coindu1593790203_llist @ A,X3: A] :
              ( ( A1
                = ( coindu1121789889_LCons @ A @ X3 @ Xs2 ) )
             => ( ( A22
                  = ( coindu1121789889_LCons @ A @ X3 @ Ys2 ) )
               => ~ ( coindu1696667936prefix @ A @ Xs2 @ Ys2 ) ) ) ) ) ).

% lprefix.cases
thf(fact_40_lprefix_Osimps,axiom,
    ! [A: $tType] :
      ( ( coindu1696667936prefix @ A )
      = ( ^ [A12: coindu1593790203_llist @ A,A23: coindu1593790203_llist @ A] :
            ( ? [Xs3: coindu1593790203_llist @ A] :
                ( ( A12
                  = ( coindu1598213697e_LNil @ A ) )
                & ( A23 = Xs3 ) )
            | ? [Xs3: coindu1593790203_llist @ A,Ys3: coindu1593790203_llist @ A,X2: A] :
                ( ( A12
                  = ( coindu1121789889_LCons @ A @ X2 @ Xs3 ) )
                & ( A23
                  = ( coindu1121789889_LCons @ A @ X2 @ Ys3 ) )
                & ( coindu1696667936prefix @ A @ Xs3 @ Ys3 ) ) ) ) ) ).

% lprefix.simps
thf(fact_41_lprefix__lnull,axiom,
    ! [A: $tType,Ys: coindu1593790203_llist @ A,Xs: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Ys )
     => ( ( coindu1696667936prefix @ A @ Xs @ Ys )
        = ( coindu335574135_lnull @ A @ Xs ) ) ) ).

% lprefix_lnull
thf(fact_42_lprefix__trans,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A,Zs: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Ys )
     => ( ( coindu1696667936prefix @ A @ Ys @ Zs )
       => ( coindu1696667936prefix @ A @ Xs @ Zs ) ) ) ).

% lprefix_trans
thf(fact_43_neq__LNil__conv,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( Xs
       != ( coindu1598213697e_LNil @ A ) )
      = ( ? [X2: A,Xs4: coindu1593790203_llist @ A] :
            ( Xs
            = ( coindu1121789889_LCons @ A @ X2 @ Xs4 ) ) ) ) ).

% neq_LNil_conv
thf(fact_44_ext,axiom,
    ! [B: $tType,A: $tType,F: A > B,G: A > B] :
      ( ! [X3: A] :
          ( ( F @ X3 )
          = ( G @ X3 ) )
     => ( F = G ) ) ).

% ext
thf(fact_45_lprefix__lnullD,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Ys )
     => ( ( coindu335574135_lnull @ A @ Ys )
       => ( coindu335574135_lnull @ A @ Xs ) ) ) ).

% lprefix_lnullD
thf(fact_46_not__lnull__conv,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( ~ ( coindu335574135_lnull @ A @ Xs ) )
      = ( ? [X2: A,Xs4: coindu1593790203_llist @ A] :
            ( Xs
            = ( coindu1121789889_LCons @ A @ X2 @ Xs4 ) ) ) ) ).

% not_lnull_conv
thf(fact_47_lappend_Oexhaust,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( ( coindu335574135_lnull @ A @ Xs )
       => ~ ( coindu335574135_lnull @ A @ Ys ) )
     => ( ~ ( coindu335574135_lnull @ A @ Xs )
        | ~ ( coindu335574135_lnull @ A @ Ys ) ) ) ).

% lappend.exhaust
thf(fact_48_lfinite_Oinducts,axiom,
    ! [A: $tType,X: coindu1593790203_llist @ A,P: ( coindu1593790203_llist @ A ) > $o] :
      ( ( coindu1213758845finite @ A @ X )
     => ( ( P @ ( coindu1598213697e_LNil @ A ) )
       => ( ! [Xs2: coindu1593790203_llist @ A,X3: A] :
              ( ( coindu1213758845finite @ A @ Xs2 )
             => ( ( P @ Xs2 )
               => ( P @ ( coindu1121789889_LCons @ A @ X3 @ Xs2 ) ) ) )
         => ( P @ X ) ) ) ) ).

% lfinite.inducts
thf(fact_49_llist_Oleq__trans,axiom,
    ! [A: $tType,X: coindu1593790203_llist @ A,Y: coindu1593790203_llist @ A,Z: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ X @ Y )
     => ( ( coindu1696667936prefix @ A @ Y @ Z )
       => ( coindu1696667936prefix @ A @ X @ Z ) ) ) ).

% llist.leq_trans
thf(fact_50_lnull__def,axiom,
    ! [A: $tType] :
      ( ( coindu335574135_lnull @ A )
      = ( ^ [Llist2: coindu1593790203_llist @ A] :
            ( Llist2
            = ( coindu1598213697e_LNil @ A ) ) ) ) ).

% lnull_def
thf(fact_51_lprefix__antisym,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Ys )
     => ( ( coindu1696667936prefix @ A @ Ys @ Xs )
       => ( Xs = Ys ) ) ) ).

% lprefix_antisym
thf(fact_52_lfinite__iterates,axiom,
    ! [A: $tType,F: A > A,X: A] :
      ~ ( coindu1213758845finite @ A @ ( coindu1529956631erates @ A @ F @ X ) ) ).

% lfinite_iterates
thf(fact_53_lfinite__llist__of,axiom,
    ! [A: $tType,Xs: list @ A] : ( coindu1213758845finite @ A @ ( coindu1079202755ist_of @ A @ Xs ) ) ).

% lfinite_llist_of
thf(fact_54_Le__LCons,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A,X: A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Ys )
     => ( coindu1696667936prefix @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) @ ( coindu1121789889_LCons @ A @ X @ Ys ) ) ) ).

% Le_LCons
thf(fact_55_lprefix_Ocoinduct,axiom,
    ! [A: $tType,X4: ( coindu1593790203_llist @ A ) > ( coindu1593790203_llist @ A ) > $o,X: coindu1593790203_llist @ A,Xa: coindu1593790203_llist @ A] :
      ( ( X4 @ X @ Xa )
     => ( ! [X3: coindu1593790203_llist @ A,Xa2: coindu1593790203_llist @ A] :
            ( ( X4 @ X3 @ Xa2 )
           => ( ? [Xs5: coindu1593790203_llist @ A] :
                  ( ( X3
                    = ( coindu1598213697e_LNil @ A ) )
                  & ( Xa2 = Xs5 ) )
              | ? [Xs5: coindu1593790203_llist @ A,Ys4: coindu1593790203_llist @ A,Xb: A] :
                  ( ( X3
                    = ( coindu1121789889_LCons @ A @ Xb @ Xs5 ) )
                  & ( Xa2
                    = ( coindu1121789889_LCons @ A @ Xb @ Ys4 ) )
                  & ( ( X4 @ Xs5 @ Ys4 )
                    | ( coindu1696667936prefix @ A @ Xs5 @ Ys4 ) ) ) ) )
       => ( coindu1696667936prefix @ A @ X @ Xa ) ) ) ).

% lprefix.coinduct
thf(fact_56_lprefix__lfiniteD,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Ys )
     => ( ( coindu1213758845finite @ A @ Ys )
       => ( coindu1213758845finite @ A @ Xs ) ) ) ).

% lprefix_lfiniteD
thf(fact_57_iterates_Odisc__iff,axiom,
    ! [A: $tType,F: A > A,X: A] :
      ~ ( coindu335574135_lnull @ A @ ( coindu1529956631erates @ A @ F @ X ) ) ).

% iterates.disc_iff
thf(fact_58_llist_Oleq__antisym,axiom,
    ! [A: $tType,X: coindu1593790203_llist @ A,Y: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ X @ Y )
     => ( ( coindu1696667936prefix @ A @ Y @ X )
       => ( X = Y ) ) ) ).

% llist.leq_antisym
thf(fact_59_lnull__imp__lfinite,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Xs )
     => ( coindu1213758845finite @ A @ Xs ) ) ).

% lnull_imp_lfinite
thf(fact_60_LCons__lprefix__conv,axiom,
    ! [A: $tType,X: A,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) @ Ys )
      = ( ? [Ys5: coindu1593790203_llist @ A] :
            ( ( Ys
              = ( coindu1121789889_LCons @ A @ X @ Ys5 ) )
            & ( coindu1696667936prefix @ A @ Xs @ Ys5 ) ) ) ) ).

% LCons_lprefix_conv
thf(fact_61_lfinite__rev__induct,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,P: ( coindu1593790203_llist @ A ) > $o] :
      ( ( coindu1213758845finite @ A @ Xs )
     => ( ( P @ ( coindu1598213697e_LNil @ A ) )
       => ( ! [X3: A,Xs2: coindu1593790203_llist @ A] :
              ( ( coindu1213758845finite @ A @ Xs2 )
             => ( ( P @ Xs2 )
               => ( P @ ( coindu268472904append @ A @ Xs2 @ ( coindu1121789889_LCons @ A @ X3 @ ( coindu1598213697e_LNil @ A ) ) ) ) ) )
         => ( P @ Xs ) ) ) ) ).

% lfinite_rev_induct
thf(fact_62_lprefix__LCons__conv,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ ( coindu1121789889_LCons @ A @ Y @ Ys ) )
      = ( ( Xs
          = ( coindu1598213697e_LNil @ A ) )
        | ? [Xs4: coindu1593790203_llist @ A] :
            ( ( Xs
              = ( coindu1121789889_LCons @ A @ Y @ Xs4 ) )
            & ( coindu1696667936prefix @ A @ Xs4 @ Ys ) ) ) ) ).

% lprefix_LCons_conv
thf(fact_63_lprefix__not__lnullD,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Ys )
     => ( ~ ( coindu335574135_lnull @ A @ Xs )
       => ~ ( coindu335574135_lnull @ A @ Ys ) ) ) ).

% lprefix_not_lnullD
thf(fact_64_lprefix__down__linear,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Zs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Zs )
     => ( ( coindu1696667936prefix @ A @ Ys @ Zs )
       => ( ( coindu1696667936prefix @ A @ Xs @ Ys )
          | ( coindu1696667936prefix @ A @ Ys @ Xs ) ) ) ) ).

% lprefix_down_linear
thf(fact_65_lfinite__LNil,axiom,
    ! [A: $tType] : ( coindu1213758845finite @ A @ ( coindu1598213697e_LNil @ A ) ) ).

% lfinite_LNil
thf(fact_66_LNil__lprefix,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] : ( coindu1696667936prefix @ A @ ( coindu1598213697e_LNil @ A ) @ Xs ) ).

% LNil_lprefix
thf(fact_67_lfinite__LConsI,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,X: A] :
      ( ( coindu1213758845finite @ A @ Xs )
     => ( coindu1213758845finite @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) ) ) ).

% lfinite_LConsI
thf(fact_68_not__lfinite__lprefix__conv__eq,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ~ ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu1696667936prefix @ A @ Xs @ Ys )
        = ( Xs = Ys ) ) ) ).

% not_lfinite_lprefix_conv_eq
thf(fact_69_lappend_Octr_I1_J,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Xs )
     => ( ( coindu335574135_lnull @ A @ Ys )
       => ( ( coindu268472904append @ A @ Xs @ Ys )
          = ( coindu1598213697e_LNil @ A ) ) ) ) ).

% lappend.ctr(1)
thf(fact_70_lappend__snocL1__conv__LCons2,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu268472904append @ A @ ( coindu268472904append @ A @ Xs @ ( coindu1121789889_LCons @ A @ Y @ ( coindu1598213697e_LNil @ A ) ) ) @ Ys )
      = ( coindu268472904append @ A @ Xs @ ( coindu1121789889_LCons @ A @ Y @ Ys ) ) ) ).

% lappend_snocL1_conv_LCons2
thf(fact_71_lappend__inf,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ~ ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu268472904append @ A @ Xs @ Ys )
        = Xs ) ) ).

% lappend_inf
thf(fact_72_lappend__lnull2,axiom,
    ! [A: $tType,Ys: coindu1593790203_llist @ A,Xs: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Ys )
     => ( ( coindu268472904append @ A @ Xs @ Ys )
        = Xs ) ) ).

% lappend_lnull2
thf(fact_73_lappend__lnull1,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Xs )
     => ( ( coindu268472904append @ A @ Xs @ Ys )
        = Ys ) ) ).

% lappend_lnull1
thf(fact_74_lappend_Odisc_I1_J,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu335574135_lnull @ A @ Xs )
     => ( ( coindu335574135_lnull @ A @ Ys )
       => ( coindu335574135_lnull @ A @ ( coindu268472904append @ A @ Xs @ Ys ) ) ) ) ).

% lappend.disc(1)
thf(fact_75_lappend_Odisc_I2_J,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( ~ ( coindu335574135_lnull @ A @ Xs )
        | ~ ( coindu335574135_lnull @ A @ Ys ) )
     => ~ ( coindu335574135_lnull @ A @ ( coindu268472904append @ A @ Xs @ Ys ) ) ) ).

% lappend.disc(2)
thf(fact_76_lprefix__lappend__sameI,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A,Zs: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ Ys )
     => ( coindu1696667936prefix @ A @ ( coindu268472904append @ A @ Zs @ Xs ) @ ( coindu268472904append @ A @ Zs @ Ys ) ) ) ).

% lprefix_lappend_sameI
thf(fact_77_lprefix__conv__lappend,axiom,
    ! [A: $tType] :
      ( ( coindu1696667936prefix @ A )
      = ( ^ [Xs3: coindu1593790203_llist @ A,Ys3: coindu1593790203_llist @ A] :
          ? [Zs2: coindu1593790203_llist @ A] :
            ( Ys3
            = ( coindu268472904append @ A @ Xs3 @ Zs2 ) ) ) ) ).

% lprefix_conv_lappend
thf(fact_78_lprefix__lappendD,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A,Zs: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ Xs @ ( coindu268472904append @ A @ Ys @ Zs ) )
     => ( ( coindu1696667936prefix @ A @ Xs @ Ys )
        | ( coindu1696667936prefix @ A @ Ys @ Xs ) ) ) ).

% lprefix_lappendD
thf(fact_79_lappend__lprefixE,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A,Zs: coindu1593790203_llist @ A] :
      ( ( coindu1696667936prefix @ A @ ( coindu268472904append @ A @ Xs @ Ys ) @ Zs )
     => ~ ! [Zs3: coindu1593790203_llist @ A] :
            ( Zs
           != ( coindu268472904append @ A @ Xs @ Zs3 ) ) ) ).

% lappend_lprefixE
thf(fact_80_lprefix__lappend,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] : ( coindu1696667936prefix @ A @ Xs @ ( coindu268472904append @ A @ Xs @ Ys ) ) ).

% lprefix_lappend
thf(fact_81_lappend__eq__LNil__iff,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( ( coindu268472904append @ A @ Xs @ Ys )
        = ( coindu1598213697e_LNil @ A ) )
      = ( ( Xs
          = ( coindu1598213697e_LNil @ A ) )
        & ( Ys
          = ( coindu1598213697e_LNil @ A ) ) ) ) ).

% lappend_eq_LNil_iff
thf(fact_82_LNil__eq__lappend__iff,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( ( coindu1598213697e_LNil @ A )
        = ( coindu268472904append @ A @ Xs @ Ys ) )
      = ( ( Xs
          = ( coindu1598213697e_LNil @ A ) )
        & ( Ys
          = ( coindu1598213697e_LNil @ A ) ) ) ) ).

% LNil_eq_lappend_iff
thf(fact_83_lappend__LNil__LNil,axiom,
    ! [A: $tType] :
      ( ( coindu268472904append @ A @ ( coindu1598213697e_LNil @ A ) @ ( coindu1598213697e_LNil @ A ) )
      = ( coindu1598213697e_LNil @ A ) ) ).

% lappend_LNil_LNil
thf(fact_84_lfinite__inf__llist,axiom,
    ! [A: $tType,F: nat > A] :
      ~ ( coindu1213758845finite @ A @ ( coindu288502823_llist @ A @ F ) ) ).

% lfinite_inf_llist
thf(fact_85_lnull__inf__llist,axiom,
    ! [A: $tType,F: nat > A] :
      ~ ( coindu335574135_lnull @ A @ ( coindu288502823_llist @ A @ F ) ) ).

% lnull_inf_llist
thf(fact_86_llast__lappend__LCons,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu2000965700_llast @ A @ ( coindu268472904append @ A @ Xs @ ( coindu1121789889_LCons @ A @ Y @ Ys ) ) )
        = ( coindu2000965700_llast @ A @ ( coindu1121789889_LCons @ A @ Y @ Ys ) ) ) ) ).

% llast_lappend_LCons
thf(fact_87_lstrict__prefix__lappend__conv,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu574146665prefix @ A @ Xs @ ( coindu268472904append @ A @ Xs @ Ys ) )
      = ( ( coindu1213758845finite @ A @ Xs )
        & ~ ( coindu335574135_lnull @ A @ Ys ) ) ) ).

% lstrict_prefix_lappend_conv
thf(fact_88_llimit__induct,axiom,
    ! [A: $tType,P: ( coindu1593790203_llist @ A ) > $o,Xs: coindu1593790203_llist @ A] :
      ( ( P @ ( coindu1598213697e_LNil @ A ) )
     => ( ! [X3: A,Xs2: coindu1593790203_llist @ A] :
            ( ( coindu1213758845finite @ A @ Xs2 )
           => ( ( P @ Xs2 )
             => ( P @ ( coindu1121789889_LCons @ A @ X3 @ Xs2 ) ) ) )
       => ( ( ! [Ys4: coindu1593790203_llist @ A] :
                ( ( coindu574146665prefix @ A @ Ys4 @ Xs )
               => ( P @ Ys4 ) )
           => ( P @ Xs ) )
         => ( P @ Xs ) ) ) ) ).

% llimit_induct
thf(fact_89_Coinductive__List__Mirabelle__kmikjhschf_Olprefix__nitpick__simps,axiom,
    ! [A: $tType] :
      ( ( coindu1696667936prefix @ A )
      = ( ^ [Xs3: coindu1593790203_llist @ A,Ys3: coindu1593790203_llist @ A] :
            ( ( ( coindu1213758845finite @ A @ Xs3 )
             => ( coindu1571841457prefix @ A @ Xs3 @ Ys3 ) )
            & ( ~ ( coindu1213758845finite @ A @ Xs3 )
             => ( Xs3 = Ys3 ) ) ) ) ) ).

% Coinductive_List_Mirabelle_kmikjhschf.lprefix_nitpick_simps
thf(fact_90_Coinductive__List__Mirabelle__kmikjhschf_Ofinite__lprefix__nitpick__simps_I3_J,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1571841457prefix @ A @ Xs @ ( coindu1121789889_LCons @ A @ Y @ Ys ) )
      = ( ( Xs
          = ( coindu1598213697e_LNil @ A ) )
        | ? [Xs4: coindu1593790203_llist @ A] :
            ( ( Xs
              = ( coindu1121789889_LCons @ A @ Y @ Xs4 ) )
            & ( coindu1571841457prefix @ A @ Xs4 @ Ys ) ) ) ) ).

% Coinductive_List_Mirabelle_kmikjhschf.finite_lprefix_nitpick_simps(3)
thf(fact_91_lstrict__prefix__code_I3_J,axiom,
    ! [B: $tType,X: B,Xs: coindu1593790203_llist @ B] :
      ~ ( coindu574146665prefix @ B @ ( coindu1121789889_LCons @ B @ X @ Xs ) @ ( coindu1598213697e_LNil @ B ) ) ).

% lstrict_prefix_code(3)
thf(fact_92_lstrict__prefix__code_I2_J,axiom,
    ! [B: $tType,Y: B,Ys: coindu1593790203_llist @ B] : ( coindu574146665prefix @ B @ ( coindu1598213697e_LNil @ B ) @ ( coindu1121789889_LCons @ B @ Y @ Ys ) ) ).

% lstrict_prefix_code(2)
thf(fact_93_llast__singleton,axiom,
    ! [A: $tType,X: A] :
      ( ( coindu2000965700_llast @ A @ ( coindu1121789889_LCons @ A @ X @ ( coindu1598213697e_LNil @ A ) ) )
      = X ) ).

% llast_singleton
thf(fact_94_llist__of__list__of,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu1079202755ist_of @ A @ ( coindu1736001939ist_of @ A @ Xs ) )
        = Xs ) ) ).

% llist_of_list_of
thf(fact_95_lmember__code_I1_J,axiom,
    ! [A: $tType,X: A] :
      ~ ( coindu567634248member @ A @ X @ ( coindu1598213697e_LNil @ A ) ) ).

% lmember_code(1)
thf(fact_96_lmember__code_I2_J,axiom,
    ! [A: $tType,X: A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu567634248member @ A @ X @ ( coindu1121789889_LCons @ A @ Y @ Ys ) )
      = ( ( X = Y )
        | ( coindu567634248member @ A @ X @ Ys ) ) ) ).

% lmember_code(2)
thf(fact_97_llast__LCons2,axiom,
    ! [A: $tType,X: A,Y: A,Xs: coindu1593790203_llist @ A] :
      ( ( coindu2000965700_llast @ A @ ( coindu1121789889_LCons @ A @ X @ ( coindu1121789889_LCons @ A @ Y @ Xs ) ) )
      = ( coindu2000965700_llast @ A @ ( coindu1121789889_LCons @ A @ Y @ Xs ) ) ) ).

% llast_LCons2
thf(fact_98_list__of__llist__of,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( coindu1736001939ist_of @ A @ ( coindu1079202755ist_of @ A @ Xs ) )
      = Xs ) ).

% list_of_llist_of
thf(fact_99_lstrict__prefix__code_I4_J,axiom,
    ! [B: $tType,X: B,Xs: coindu1593790203_llist @ B,Y: B,Ys: coindu1593790203_llist @ B] :
      ( ( coindu574146665prefix @ B @ ( coindu1121789889_LCons @ B @ X @ Xs ) @ ( coindu1121789889_LCons @ B @ Y @ Ys ) )
      = ( ( X = Y )
        & ( coindu574146665prefix @ B @ Xs @ Ys ) ) ) ).

% lstrict_prefix_code(4)
thf(fact_100_lstrict__prefix__code_I1_J,axiom,
    ! [A: $tType] :
      ~ ( coindu574146665prefix @ A @ ( coindu1598213697e_LNil @ A ) @ ( coindu1598213697e_LNil @ A ) ) ).

% lstrict_prefix_code(1)
thf(fact_101_llist__less__induct,axiom,
    ! [A: $tType,P: ( coindu1593790203_llist @ A ) > $o,Xs: coindu1593790203_llist @ A] :
      ( ! [Xs2: coindu1593790203_llist @ A] :
          ( ! [Ys4: coindu1593790203_llist @ A] :
              ( ( coindu574146665prefix @ A @ Ys4 @ Xs2 )
             => ( P @ Ys4 ) )
         => ( P @ Xs2 ) )
     => ( P @ Xs ) ) ).

% llist_less_induct
thf(fact_102_lstrict__prefix__def,axiom,
    ! [A: $tType] :
      ( ( coindu574146665prefix @ A )
      = ( ^ [Xs3: coindu1593790203_llist @ A,Ys3: coindu1593790203_llist @ A] :
            ( ( coindu1696667936prefix @ A @ Xs3 @ Ys3 )
            & ( Xs3 != Ys3 ) ) ) ) ).

% lstrict_prefix_def
thf(fact_103_lstrict__prefix__lfinite1,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu574146665prefix @ A @ Xs @ Ys )
     => ( coindu1213758845finite @ A @ Xs ) ) ).

% lstrict_prefix_lfinite1
thf(fact_104_Coinductive__List__Mirabelle__kmikjhschf_Ofinite__lprefix__def,axiom,
    ! [A: $tType] :
      ( ( coindu1571841457prefix @ A )
      = ( coindu1696667936prefix @ A ) ) ).

% Coinductive_List_Mirabelle_kmikjhschf.finite_lprefix_def
thf(fact_105_Coinductive__List__Mirabelle__kmikjhschf_Ofinite__lprefix__nitpick__simps_I1_J,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( coindu1571841457prefix @ A @ Xs @ ( coindu1598213697e_LNil @ A ) )
      = ( Xs
        = ( coindu1598213697e_LNil @ A ) ) ) ).

% Coinductive_List_Mirabelle_kmikjhschf.finite_lprefix_nitpick_simps(1)
thf(fact_106_Coinductive__List__Mirabelle__kmikjhschf_Ofinite__lprefix__nitpick__simps_I2_J,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] : ( coindu1571841457prefix @ A @ ( coindu1598213697e_LNil @ A ) @ Xs ) ).

% Coinductive_List_Mirabelle_kmikjhschf.finite_lprefix_nitpick_simps(2)
thf(fact_107_llast__LCons,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,X: A] :
      ( ( ( coindu335574135_lnull @ A @ Xs )
       => ( ( coindu2000965700_llast @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) )
          = X ) )
      & ( ~ ( coindu335574135_lnull @ A @ Xs )
       => ( ( coindu2000965700_llast @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) )
          = ( coindu2000965700_llast @ A @ Xs ) ) ) ) ).

% llast_LCons
thf(fact_108_llast__lappend,axiom,
    ! [A: $tType,Ys: coindu1593790203_llist @ A,Xs: coindu1593790203_llist @ A] :
      ( ( ( coindu335574135_lnull @ A @ Ys )
       => ( ( coindu2000965700_llast @ A @ ( coindu268472904append @ A @ Xs @ Ys ) )
          = ( coindu2000965700_llast @ A @ Xs ) ) )
      & ( ~ ( coindu335574135_lnull @ A @ Ys )
       => ( ( ( coindu1213758845finite @ A @ Xs )
           => ( ( coindu2000965700_llast @ A @ ( coindu268472904append @ A @ Xs @ Ys ) )
              = ( coindu2000965700_llast @ A @ Ys ) ) )
          & ( ~ ( coindu1213758845finite @ A @ Xs )
           => ( ( coindu2000965700_llast @ A @ ( coindu268472904append @ A @ Xs @ Ys ) )
              = ( undefined @ A ) ) ) ) ) ) ).

% llast_lappend
thf(fact_109_list__of__LCons,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,X: A] :
      ( ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu1736001939ist_of @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) )
        = ( cons @ A @ X @ ( coindu1736001939ist_of @ A @ Xs ) ) ) ) ).

% list_of_LCons
thf(fact_110_nth__list__of,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ( coindu1213758845finite @ A @ Xs )
     => ( ( nth @ A @ ( coindu1736001939ist_of @ A @ Xs ) )
        = ( coindu749330388e_lnth @ A @ Xs ) ) ) ).

% nth_list_of
thf(fact_111_llast__llist__of,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( coindu2000965700_llast @ A @ ( coindu1079202755ist_of @ A @ Xs ) )
      = ( last @ A @ Xs ) ) ).

% llast_llist_of
thf(fact_112_list__of__lappend,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu1213758845finite @ A @ Ys )
       => ( ( coindu1736001939ist_of @ A @ ( coindu268472904append @ A @ Xs @ Ys ) )
          = ( append @ A @ ( coindu1736001939ist_of @ A @ Xs ) @ ( coindu1736001939ist_of @ A @ Ys ) ) ) ) ) ).

% list_of_lappend
thf(fact_113_lnth__llist__of,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( coindu749330388e_lnth @ A @ ( coindu1079202755ist_of @ A @ Xs ) )
      = ( nth @ A @ Xs ) ) ).

% lnth_llist_of
thf(fact_114_list__of__LCons__conv,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A,X: A] :
      ( ( ( coindu1213758845finite @ A @ Xs )
       => ( ( coindu1736001939ist_of @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) )
          = ( cons @ A @ X @ ( coindu1736001939ist_of @ A @ Xs ) ) ) )
      & ( ~ ( coindu1213758845finite @ A @ Xs )
       => ( ( coindu1736001939ist_of @ A @ ( coindu1121789889_LCons @ A @ X @ Xs ) )
          = ( undefined @ ( list @ A ) ) ) ) ) ).

% list_of_LCons_conv
thf(fact_115_lnth__LNil,axiom,
    ! [A: $tType,N: nat] :
      ( ( coindu749330388e_lnth @ A @ ( coindu1598213697e_LNil @ A ) @ N )
      = ( undefined @ ( nat > A ) @ N ) ) ).

% lnth_LNil
thf(fact_116_lprefix__llist__ofI,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ A] :
      ( ? [Zs4: list @ A] :
          ( Ys
          = ( append @ A @ Xs @ Zs4 ) )
     => ( coindu1696667936prefix @ A @ ( coindu1079202755ist_of @ A @ Xs ) @ ( coindu1079202755ist_of @ A @ Ys ) ) ) ).

% lprefix_llist_ofI
thf(fact_117_lappend__llist__of__llist__of,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( coindu268472904append @ A @ ( coindu1079202755ist_of @ A @ Xs ) @ ( coindu1079202755ist_of @ A @ Ys ) )
      = ( coindu1079202755ist_of @ A @ ( append @ A @ Xs @ Ys ) ) ) ).

% lappend_llist_of_llist_of
thf(fact_118_llist__of_Osimps_I2_J,axiom,
    ! [A: $tType,X: A,Xs: list @ A] :
      ( ( coindu1079202755ist_of @ A @ ( cons @ A @ X @ Xs ) )
      = ( coindu1121789889_LCons @ A @ X @ ( coindu1079202755ist_of @ A @ Xs ) ) ) ).

% llist_of.simps(2)
thf(fact_119_llist__of__eq__LCons__conv,axiom,
    ! [A: $tType,Xs: list @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( ( coindu1079202755ist_of @ A @ Xs )
        = ( coindu1121789889_LCons @ A @ Y @ Ys ) )
      = ( ? [Xs4: list @ A] :
            ( ( Xs
              = ( cons @ A @ Y @ Xs4 ) )
            & ( Ys
              = ( coindu1079202755ist_of @ A @ Xs4 ) ) ) ) ) ).

% llist_of_eq_LCons_conv
thf(fact_120_llast__LNil,axiom,
    ! [A: $tType] :
      ( ( coindu2000965700_llast @ A @ ( coindu1598213697e_LNil @ A ) )
      = ( undefined @ A ) ) ).

% llast_LNil
thf(fact_121_llast__linfinite,axiom,
    ! [A: $tType,Xs: coindu1593790203_llist @ A] :
      ( ~ ( coindu1213758845finite @ A @ Xs )
     => ( ( coindu2000965700_llast @ A @ Xs )
        = ( undefined @ A ) ) ) ).

% llast_linfinite
thf(fact_122_append__assoc,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A,Zs: list @ A] :
      ( ( append @ A @ ( append @ A @ Xs @ Ys ) @ Zs )
      = ( append @ A @ Xs @ ( append @ A @ Ys @ Zs ) ) ) ).

% append_assoc
thf(fact_123_append__same__eq,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ A,Zs: list @ A] :
      ( ( ( append @ A @ Ys @ Xs )
        = ( append @ A @ Zs @ Xs ) )
      = ( Ys = Zs ) ) ).

% append_same_eq
thf(fact_124_same__append__eq,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A,Zs: list @ A] :
      ( ( ( append @ A @ Xs @ Ys )
        = ( append @ A @ Xs @ Zs ) )
      = ( Ys = Zs ) ) ).

% same_append_eq
thf(fact_125_list_Oinject,axiom,
    ! [A: $tType,X21: A,X22: list @ A,Y21: A,Y22: list @ A] :
      ( ( ( cons @ A @ X21 @ X22 )
        = ( cons @ A @ Y21 @ Y22 ) )
      = ( ( X21 = Y21 )
        & ( X22 = Y22 ) ) ) ).

% list.inject
thf(fact_126_not__Cons__self2,axiom,
    ! [A: $tType,X: A,Xs: list @ A] :
      ( ( cons @ A @ X @ Xs )
     != Xs ) ).

% not_Cons_self2
thf(fact_127_append__eq__append__conv2,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A,Zs: list @ A,Ts: list @ A] :
      ( ( ( append @ A @ Xs @ Ys )
        = ( append @ A @ Zs @ Ts ) )
      = ( ? [Us: list @ A] :
            ( ( ( Xs
                = ( append @ A @ Zs @ Us ) )
              & ( ( append @ A @ Us @ Ys )
                = Ts ) )
            | ( ( ( append @ A @ Xs @ Us )
                = Zs )
              & ( Ys
                = ( append @ A @ Us @ Ts ) ) ) ) ) ) ).

% append_eq_append_conv2
thf(fact_128_append__eq__appendI,axiom,
    ! [A: $tType,Xs: list @ A,Xs1: list @ A,Zs: list @ A,Ys: list @ A,Us2: list @ A] :
      ( ( ( append @ A @ Xs @ Xs1 )
        = Zs )
     => ( ( Ys
          = ( append @ A @ Xs1 @ Us2 ) )
       => ( ( append @ A @ Xs @ Ys )
          = ( append @ A @ Zs @ Us2 ) ) ) ) ).

% append_eq_appendI
thf(fact_129_append__Cons,axiom,
    ! [A: $tType,X: A,Xs: list @ A,Ys: list @ A] :
      ( ( append @ A @ ( cons @ A @ X @ Xs ) @ Ys )
      = ( cons @ A @ X @ ( append @ A @ Xs @ Ys ) ) ) ).

% append_Cons
thf(fact_130_Cons__eq__appendI,axiom,
    ! [A: $tType,X: A,Xs1: list @ A,Ys: list @ A,Xs: list @ A,Zs: list @ A] :
      ( ( ( cons @ A @ X @ Xs1 )
        = Ys )
     => ( ( Xs
          = ( append @ A @ Xs1 @ Zs ) )
       => ( ( cons @ A @ X @ Xs )
          = ( append @ A @ Ys @ Zs ) ) ) ) ).

% Cons_eq_appendI
thf(fact_131_bind__simps_I2_J,axiom,
    ! [A: $tType,B: $tType,X: B,Xs: list @ B,F: B > ( list @ A )] :
      ( ( bind @ B @ A @ ( cons @ B @ X @ Xs ) @ F )
      = ( append @ A @ ( F @ X ) @ ( bind @ B @ A @ Xs @ F ) ) ) ).

% bind_simps(2)
thf(fact_132_lappend__llist__of__LCons,axiom,
    ! [A: $tType,Xs: list @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu268472904append @ A @ ( coindu1079202755ist_of @ A @ Xs ) @ ( coindu1121789889_LCons @ A @ Y @ Ys ) )
      = ( coindu268472904append @ A @ ( coindu1079202755ist_of @ A @ ( append @ A @ Xs @ ( cons @ A @ Y @ ( nil @ A ) ) ) ) @ Ys ) ) ).

% lappend_llist_of_LCons
thf(fact_133_list__of__aux__code_I2_J,axiom,
    ! [A: $tType,Xs: list @ A,Y: A,Ys: coindu1593790203_llist @ A] :
      ( ( coindu1542816657of_aux @ A @ Xs @ ( coindu1121789889_LCons @ A @ Y @ Ys ) )
      = ( coindu1542816657of_aux @ A @ ( cons @ A @ Y @ Xs ) @ Ys ) ) ).

% list_of_aux_code(2)
thf(fact_134_maps__simps_I1_J,axiom,
    ! [A: $tType,B: $tType,F: B > ( list @ A ),X: B,Xs: list @ B] :
      ( ( maps @ B @ A @ F @ ( cons @ B @ X @ Xs ) )
      = ( append @ A @ ( F @ X ) @ ( maps @ B @ A @ F @ Xs ) ) ) ).

% maps_simps(1)
thf(fact_135_append__is__Nil__conv,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( append @ A @ Xs @ Ys )
        = ( nil @ A ) )
      = ( ( Xs
          = ( nil @ A ) )
        & ( Ys
          = ( nil @ A ) ) ) ) ).

% append_is_Nil_conv
thf(fact_136_Nil__is__append__conv,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( nil @ A )
        = ( append @ A @ Xs @ Ys ) )
      = ( ( Xs
          = ( nil @ A ) )
        & ( Ys
          = ( nil @ A ) ) ) ) ).

% Nil_is_append_conv
thf(fact_137_self__append__conv2,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ A] :
      ( ( Ys
        = ( append @ A @ Xs @ Ys ) )
      = ( Xs
        = ( nil @ A ) ) ) ).

% self_append_conv2
thf(fact_138_append__self__conv2,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( append @ A @ Xs @ Ys )
        = Ys )
      = ( Xs
        = ( nil @ A ) ) ) ).

% append_self_conv2
thf(fact_139_self__append__conv,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( Xs
        = ( append @ A @ Xs @ Ys ) )
      = ( Ys
        = ( nil @ A ) ) ) ).

% self_append_conv
thf(fact_140_append__self__conv,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( append @ A @ Xs @ Ys )
        = Xs )
      = ( Ys
        = ( nil @ A ) ) ) ).

% append_self_conv
thf(fact_141_append__Nil2,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( append @ A @ Xs @ ( nil @ A ) )
      = Xs ) ).

% append_Nil2
thf(fact_142_bind__simps_I1_J,axiom,
    ! [B: $tType,A: $tType,F: B > ( list @ A )] :
      ( ( bind @ B @ A @ ( nil @ B ) @ F )
      = ( nil @ A ) ) ).

% bind_simps(1)
thf(fact_143_append1__eq__conv,axiom,
    ! [A: $tType,Xs: list @ A,X: A,Ys: list @ A,Y: A] :
      ( ( ( append @ A @ Xs @ ( cons @ A @ X @ ( nil @ A ) ) )
        = ( append @ A @ Ys @ ( cons @ A @ Y @ ( nil @ A ) ) ) )
      = ( ( Xs = Ys )
        & ( X = Y ) ) ) ).

% append1_eq_conv
thf(fact_144_lnull__llist__of,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( coindu335574135_lnull @ A @ ( coindu1079202755ist_of @ A @ Xs ) )
      = ( Xs
        = ( nil @ A ) ) ) ).

% lnull_llist_of
thf(fact_145_last__appendL,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ A] :
      ( ( Ys
        = ( nil @ A ) )
     => ( ( last @ A @ ( append @ A @ Xs @ Ys ) )
        = ( last @ A @ Xs ) ) ) ).

% last_appendL
thf(fact_146_last__appendR,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ A] :
      ( ( Ys
       != ( nil @ A ) )
     => ( ( last @ A @ ( append @ A @ Xs @ Ys ) )
        = ( last @ A @ Ys ) ) ) ).

% last_appendR
thf(fact_147_list__of__LNil,axiom,
    ! [A: $tType] :
      ( ( coindu1736001939ist_of @ A @ ( coindu1598213697e_LNil @ A ) )
      = ( nil @ A ) ) ).

% list_of_LNil
thf(fact_148_last__snoc,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( last @ A @ ( append @ A @ Xs @ ( cons @ A @ X @ ( nil @ A ) ) ) )
      = X ) ).

% last_snoc
thf(fact_149_list_Odistinct_I1_J,axiom,
    ! [A: $tType,X21: A,X22: list @ A] :
      ( ( nil @ A )
     != ( cons @ A @ X21 @ X22 ) ) ).

% list.distinct(1)
thf(fact_150_list_OdiscI,axiom,
    ! [A: $tType,List: list @ A,X21: A,X22: list @ A] :
      ( ( List
        = ( cons @ A @ X21 @ X22 ) )
     => ( List
       != ( nil @ A ) ) ) ).

% list.discI
thf(fact_151_list_Oexhaust,axiom,
    ! [A: $tType,Y: list @ A] :
      ( ( Y
       != ( nil @ A ) )
     => ~ ! [X212: A,X222: list @ A] :
            ( Y
           != ( cons @ A @ X212 @ X222 ) ) ) ).

% list.exhaust
thf(fact_152_list_Oinducts,axiom,
    ! [A: $tType,P: ( list @ A ) > $o,List: list @ A] :
      ( ( P @ ( nil @ A ) )
     => ( ! [X1: A,X23: list @ A] :
            ( ( P @ X23 )
           => ( P @ ( cons @ A @ X1 @ X23 ) ) )
       => ( P @ List ) ) ) ).

% list.inducts
thf(fact_153_neq__Nil__conv,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( Xs
       != ( nil @ A ) )
      = ( ? [Y2: A,Ys3: list @ A] :
            ( Xs
            = ( cons @ A @ Y2 @ Ys3 ) ) ) ) ).

% neq_Nil_conv
thf(fact_154_list__induct2_H,axiom,
    ! [A: $tType,B: $tType,P: ( list @ A ) > ( list @ B ) > $o,Xs: list @ A,Ys: list @ B] :
      ( ( P @ ( nil @ A ) @ ( nil @ B ) )
     => ( ! [X3: A,Xs2: list @ A] : ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( nil @ B ) )
       => ( ! [Y3: B,Ys2: list @ B] : ( P @ ( nil @ A ) @ ( cons @ B @ Y3 @ Ys2 ) )
         => ( ! [X3: A,Xs2: list @ A,Y3: B,Ys2: list @ B] :
                ( ( P @ Xs2 @ Ys2 )
               => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ B @ Y3 @ Ys2 ) ) )
           => ( P @ Xs @ Ys ) ) ) ) ) ).

% list_induct2'
thf(fact_155_splice_Oinduct,axiom,
    ! [A: $tType,P: ( list @ A ) > ( list @ A ) > $o,A0: list @ A,A1: list @ A] :
      ( ! [X1: list @ A] : ( P @ ( nil @ A ) @ X1 )
     => ( ! [V: A,Va: list @ A] : ( P @ ( cons @ A @ V @ Va ) @ ( nil @ A ) )
       => ( ! [X3: A,Xs2: list @ A,Y3: A,Ys2: list @ A] :
              ( ( P @ Xs2 @ Ys2 )
             => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ A @ Y3 @ Ys2 ) ) )
         => ( P @ A0 @ A1 ) ) ) ) ).

% splice.induct
thf(fact_156_eq__Nil__appendI,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( Xs = Ys )
     => ( Xs
        = ( append @ A @ ( nil @ A ) @ Ys ) ) ) ).

% eq_Nil_appendI
thf(fact_157_transpose_Ocases,axiom,
    ! [A: $tType,X: list @ ( list @ A )] :
      ( ( X
       != ( nil @ ( list @ A ) ) )
     => ( ! [Xss: list @ ( list @ A )] :
            ( X
           != ( cons @ ( list @ A ) @ ( nil @ A ) @ Xss ) )
       => ~ ! [X3: A,Xs2: list @ A,Xss: list @ ( list @ A )] :
              ( X
             != ( cons @ ( list @ A ) @ ( cons @ A @ X3 @ Xs2 ) @ Xss ) ) ) ) ).

% transpose.cases
thf(fact_158_append__Nil,axiom,
    ! [A: $tType,Ys: list @ A] :
      ( ( append @ A @ ( nil @ A ) @ Ys )
      = Ys ) ).

% append_Nil
thf(fact_159_remdups__adj_Ocases,axiom,
    ! [A: $tType,X: list @ A] :
      ( ( X
       != ( nil @ A ) )
     => ( ! [X3: A] :
            ( X
           != ( cons @ A @ X3 @ ( nil @ A ) ) )
       => ~ ! [X3: A,Y3: A,Xs2: list @ A] :
              ( X
             != ( cons @ A @ X3 @ ( cons @ A @ Y3 @ Xs2 ) ) ) ) ) ).

% remdups_adj.cases
thf(fact_160_remdups__adj_Oinduct,axiom,
    ! [A: $tType,P: ( list @ A ) > $o,A0: list @ A] :
      ( ( P @ ( nil @ A ) )
     => ( ! [X3: A] : ( P @ ( cons @ A @ X3 @ ( nil @ A ) ) )
       => ( ! [X3: A,Y3: A,Xs2: list @ A] :
              ( ( ( X3 = Y3 )
               => ( P @ ( cons @ A @ X3 @ Xs2 ) ) )
             => ( ( ( X3 != Y3 )
                 => ( P @ ( cons @ A @ Y3 @ Xs2 ) ) )
               => ( P @ ( cons @ A @ X3 @ ( cons @ A @ Y3 @ Xs2 ) ) ) ) )
         => ( P @ A0 ) ) ) ) ).

% remdups_adj.induct
thf(fact_161_list__nonempty__induct,axiom,
    ! [A: $tType,Xs: list @ A,P: ( list @ A ) > $o] :
      ( ( Xs
       != ( nil @ A ) )
     => ( ! [X3: A] : ( P @ ( cons @ A @ X3 @ ( nil @ A ) ) )
       => ( ! [X3: A,Xs2: list @ A] :
              ( ( Xs2
               != ( nil @ A ) )
             => ( ( P @ Xs2 )
               => ( P @ ( cons @ A @ X3 @ Xs2 ) ) ) )
         => ( P @ Xs ) ) ) ) ).

% list_nonempty_induct
thf(fact_162_map__tailrec__rev_Oinduct,axiom,
    ! [A: $tType,B: $tType,P: ( A > B ) > ( list @ A ) > ( list @ B ) > $o,A0: A > B,A1: list @ A,A22: list @ B] :
      ( ! [F2: A > B,X1: list @ B] : ( P @ F2 @ ( nil @ A ) @ X1 )
     => ( ! [F2: A > B,A4: A,As: list @ A,Bs: list @ B] :
            ( ( P @ F2 @ As @ ( cons @ B @ ( F2 @ A4 ) @ Bs ) )
           => ( P @ F2 @ ( cons @ A @ A4 @ As ) @ Bs ) )
       => ( P @ A0 @ A1 @ A22 ) ) ) ).

% map_tailrec_rev.induct
thf(fact_163_maps__simps_I2_J,axiom,
    ! [B: $tType,A: $tType,F: B > ( list @ A )] :
      ( ( maps @ B @ A @ F @ ( nil @ B ) )
      = ( nil @ A ) ) ).

% maps_simps(2)
thf(fact_164_list__of__code,axiom,
    ! [A: $tType] :
      ( ( coindu1736001939ist_of @ A )
      = ( coindu1542816657of_aux @ A @ ( nil @ A ) ) ) ).

% list_of_code
thf(fact_165_rev__induct,axiom,
    ! [A: $tType,P: ( list @ A ) > $o,Xs: list @ A] :
      ( ( P @ ( nil @ A ) )
     => ( ! [X3: A,Xs2: list @ A] :
            ( ( P @ Xs2 )
           => ( P @ ( append @ A @ Xs2 @ ( cons @ A @ X3 @ ( nil @ A ) ) ) ) )
       => ( P @ Xs ) ) ) ).

% rev_induct
thf(fact_166_rev__exhaust,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( Xs
       != ( nil @ A ) )
     => ~ ! [Ys2: list @ A,Y3: A] :
            ( Xs
           != ( append @ A @ Ys2 @ ( cons @ A @ Y3 @ ( nil @ A ) ) ) ) ) ).

% rev_exhaust
thf(fact_167_Cons__eq__append__conv,axiom,
    ! [A: $tType,X: A,Xs: list @ A,Ys: list @ A,Zs: list @ A] :
      ( ( ( cons @ A @ X @ Xs )
        = ( append @ A @ Ys @ Zs ) )
      = ( ( ( Ys
            = ( nil @ A ) )
          & ( ( cons @ A @ X @ Xs )
            = Zs ) )
        | ? [Ys5: list @ A] :
            ( ( ( cons @ A @ X @ Ys5 )
              = Ys )
            & ( Xs
              = ( append @ A @ Ys5 @ Zs ) ) ) ) ) ).

% Cons_eq_append_conv
thf(fact_168_append__eq__Cons__conv,axiom,
    ! [A: $tType,Ys: list @ A,Zs: list @ A,X: A,Xs: list @ A] :
      ( ( ( append @ A @ Ys @ Zs )
        = ( cons @ A @ X @ Xs ) )
      = ( ( ( Ys
            = ( nil @ A ) )
          & ( Zs
            = ( cons @ A @ X @ Xs ) ) )
        | ? [Ys5: list @ A] :
            ( ( Ys
              = ( cons @ A @ X @ Ys5 ) )
            & ( ( append @ A @ Ys5 @ Zs )
              = Xs ) ) ) ) ).

% append_eq_Cons_conv
thf(fact_169_rev__nonempty__induct,axiom,
    ! [A: $tType,Xs: list @ A,P: ( list @ A ) > $o] :
      ( ( Xs
       != ( nil @ A ) )
     => ( ! [X3: A] : ( P @ ( cons @ A @ X3 @ ( nil @ A ) ) )
       => ( ! [X3: A,Xs2: list @ A] :
              ( ( Xs2
               != ( nil @ A ) )
             => ( ( P @ Xs2 )
               => ( P @ ( append @ A @ Xs2 @ ( cons @ A @ X3 @ ( nil @ A ) ) ) ) ) )
         => ( P @ Xs ) ) ) ) ).

% rev_nonempty_induct
thf(fact_170_last_Osimps,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( ( Xs
          = ( nil @ A ) )
       => ( ( last @ A @ ( cons @ A @ X @ Xs ) )
          = X ) )
      & ( ( Xs
         != ( nil @ A ) )
       => ( ( last @ A @ ( cons @ A @ X @ Xs ) )
          = ( last @ A @ Xs ) ) ) ) ).

% last.simps
thf(fact_171_last__ConsL,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( Xs
        = ( nil @ A ) )
     => ( ( last @ A @ ( cons @ A @ X @ Xs ) )
        = X ) ) ).

% last_ConsL
thf(fact_172_last__ConsR,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( Xs
       != ( nil @ A ) )
     => ( ( last @ A @ ( cons @ A @ X @ Xs ) )
        = ( last @ A @ Xs ) ) ) ).

% last_ConsR
thf(fact_173_llist__of_Osimps_I1_J,axiom,
    ! [A: $tType] :
      ( ( coindu1079202755ist_of @ A @ ( nil @ A ) )
      = ( coindu1598213697e_LNil @ A ) ) ).

% llist_of.simps(1)
thf(fact_174_llist__of__eq__LNil__conv,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( ( coindu1079202755ist_of @ A @ Xs )
        = ( coindu1598213697e_LNil @ A ) )
      = ( Xs
        = ( nil @ A ) ) ) ).

% llist_of_eq_LNil_conv
thf(fact_175_last__append,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ A] :
      ( ( ( Ys
          = ( nil @ A ) )
       => ( ( last @ A @ ( append @ A @ Xs @ Ys ) )
          = ( last @ A @ Xs ) ) )
      & ( ( Ys
         != ( nil @ A ) )
       => ( ( last @ A @ ( append @ A @ Xs @ Ys ) )
          = ( last @ A @ Ys ) ) ) ) ).

% last_append
thf(fact_176_longest__common__suffix,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
    ? [Ss: list @ A,Xs6: list @ A,Ys6: list @ A] :
      ( ( Xs
        = ( append @ A @ Xs6 @ Ss ) )
      & ( Ys
        = ( append @ A @ Ys6 @ Ss ) )
      & ( ( Xs6
          = ( nil @ A ) )
        | ( Ys6
          = ( nil @ A ) )
        | ( ( last @ A @ Xs6 )
         != ( last @ A @ Ys6 ) ) ) ) ).

% longest_common_suffix
thf(fact_177_longest__common__prefix_Oinduct,axiom,
    ! [A: $tType,P: ( list @ A ) > ( list @ A ) > $o,A0: list @ A,A1: list @ A] :
      ( ! [X3: A,Xs2: list @ A,Y3: A,Ys2: list @ A] :
          ( ( ( X3 = Y3 )
           => ( P @ Xs2 @ Ys2 ) )
         => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ A @ Y3 @ Ys2 ) ) )
     => ( ! [X1: list @ A] : ( P @ ( nil @ A ) @ X1 )
       => ( ! [Uu: list @ A] : ( P @ Uu @ ( nil @ A ) )
         => ( P @ A0 @ A1 ) ) ) ) ).

% longest_common_prefix.induct
thf(fact_178_prefixes_Oinduct,axiom,
    ! [A: $tType,P: ( list @ A ) > $o,A0: list @ A] :
      ( ( P @ ( nil @ A ) )
     => ( ! [X3: A,Xs2: list @ A] :
            ( ( P @ Xs2 )
           => ( P @ ( cons @ A @ X3 @ Xs2 ) ) )
       => ( P @ A0 ) ) ) ).

% prefixes.induct
thf(fact_179_prefixes_Ocases,axiom,
    ! [A: $tType,X: list @ A] :
      ( ( X
       != ( nil @ A ) )
     => ~ ! [X3: A,Xs2: list @ A] :
            ( X
           != ( cons @ A @ X3 @ Xs2 ) ) ) ).

% prefixes.cases
thf(fact_180_list__of__aux__def,axiom,
    ! [A: $tType] :
      ( ( coindu1542816657of_aux @ A )
      = ( ^ [Xs3: list @ A,Ys3: coindu1593790203_llist @ A] : ( if @ ( list @ A ) @ ( coindu1213758845finite @ A @ Ys3 ) @ ( append @ A @ ( rev @ A @ Xs3 ) @ ( coindu1736001939ist_of @ A @ Ys3 ) ) @ ( undefined @ ( list @ A ) ) ) ) ) ).

% list_of_aux_def
thf(fact_181_rev__rev__ident,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( rev @ A @ ( rev @ A @ Xs ) )
      = Xs ) ).

% rev_rev_ident
thf(fact_182_rev__is__rev__conv,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( rev @ A @ Xs )
        = ( rev @ A @ Ys ) )
      = ( Xs = Ys ) ) ).

% rev_is_rev_conv
thf(fact_183_rev__is__Nil__conv,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( ( rev @ A @ Xs )
        = ( nil @ A ) )
      = ( Xs
        = ( nil @ A ) ) ) ).

% rev_is_Nil_conv
thf(fact_184_Nil__is__rev__conv,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( ( nil @ A )
        = ( rev @ A @ Xs ) )
      = ( Xs
        = ( nil @ A ) ) ) ).

% Nil_is_rev_conv
thf(fact_185_rev__append,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( rev @ A @ ( append @ A @ Xs @ Ys ) )
      = ( append @ A @ ( rev @ A @ Ys ) @ ( rev @ A @ Xs ) ) ) ).

% rev_append
thf(fact_186_singleton__rev__conv,axiom,
    ! [A: $tType,X: A,Xs: list @ A] :
      ( ( ( cons @ A @ X @ ( nil @ A ) )
        = ( rev @ A @ Xs ) )
      = ( Xs
        = ( cons @ A @ X @ ( nil @ A ) ) ) ) ).

% singleton_rev_conv
thf(fact_187_rev__singleton__conv,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( ( rev @ A @ Xs )
        = ( cons @ A @ X @ ( nil @ A ) ) )
      = ( Xs
        = ( cons @ A @ X @ ( nil @ A ) ) ) ) ).

% rev_singleton_conv
thf(fact_188_rev__eq__Cons__iff,axiom,
    ! [A: $tType,Xs: list @ A,Y: A,Ys: list @ A] :
      ( ( ( rev @ A @ Xs )
        = ( cons @ A @ Y @ Ys ) )
      = ( Xs
        = ( append @ A @ ( rev @ A @ Ys ) @ ( cons @ A @ Y @ ( nil @ A ) ) ) ) ) ).

% rev_eq_Cons_iff
thf(fact_189_rev_Osimps_I1_J,axiom,
    ! [A: $tType] :
      ( ( rev @ A @ ( nil @ A ) )
      = ( nil @ A ) ) ).

% rev.simps(1)
thf(fact_190_rev__swap,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( rev @ A @ Xs )
        = Ys )
      = ( Xs
        = ( rev @ A @ Ys ) ) ) ).

% rev_swap
thf(fact_191_list__of__aux__code_I1_J,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( coindu1542816657of_aux @ A @ Xs @ ( coindu1598213697e_LNil @ A ) )
      = ( rev @ A @ Xs ) ) ).

% list_of_aux_code(1)
thf(fact_192_rev_Osimps_I2_J,axiom,
    ! [A: $tType,X: A,Xs: list @ A] :
      ( ( rev @ A @ ( cons @ A @ X @ Xs ) )
      = ( append @ A @ ( rev @ A @ Xs ) @ ( cons @ A @ X @ ( nil @ A ) ) ) ) ).

% rev.simps(2)
thf(fact_193_prefixes__snoc,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( prefixes @ A @ ( append @ A @ Xs @ ( cons @ A @ X @ ( nil @ A ) ) ) )
      = ( append @ ( list @ A ) @ ( prefixes @ A @ Xs ) @ ( cons @ ( list @ A ) @ ( append @ A @ Xs @ ( cons @ A @ X @ ( nil @ A ) ) ) @ ( nil @ ( list @ A ) ) ) ) ) ).

% prefixes_snoc
thf(fact_194_prefixes__eq__Snoc,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ ( list @ A ),X: list @ A] :
      ( ( ( prefixes @ A @ Ys )
        = ( append @ ( list @ A ) @ Xs @ ( cons @ ( list @ A ) @ X @ ( nil @ ( list @ A ) ) ) ) )
      = ( ( ( ( Ys
              = ( nil @ A ) )
            & ( Xs
              = ( nil @ ( list @ A ) ) ) )
          | ? [Z2: A,Zs2: list @ A] :
              ( ( Ys
                = ( append @ A @ Zs2 @ ( cons @ A @ Z2 @ ( nil @ A ) ) ) )
              & ( Xs
                = ( prefixes @ A @ Zs2 ) ) ) )
        & ( X = Ys ) ) ) ).

% prefixes_eq_Snoc
thf(fact_195_sublists_Osimps_I1_J,axiom,
    ! [A: $tType] :
      ( ( sublists @ A @ ( nil @ A ) )
      = ( cons @ ( list @ A ) @ ( nil @ A ) @ ( nil @ ( list @ A ) ) ) ) ).

% sublists.simps(1)
thf(fact_196_prefixes_Osimps_I1_J,axiom,
    ! [A: $tType] :
      ( ( prefixes @ A @ ( nil @ A ) )
      = ( cons @ ( list @ A ) @ ( nil @ A ) @ ( nil @ ( list @ A ) ) ) ) ).

% prefixes.simps(1)
thf(fact_197_append__butlast__last__id,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( Xs
       != ( nil @ A ) )
     => ( ( append @ A @ ( butlast @ A @ Xs ) @ ( cons @ A @ ( last @ A @ Xs ) @ ( nil @ A ) ) )
        = Xs ) ) ).

% append_butlast_last_id
thf(fact_198_product__lists_Osimps_I1_J,axiom,
    ! [A: $tType] :
      ( ( product_lists @ A @ ( nil @ ( list @ A ) ) )
      = ( cons @ ( list @ A ) @ ( nil @ A ) @ ( nil @ ( list @ A ) ) ) ) ).

% product_lists.simps(1)
thf(fact_199_butlast__snoc,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( butlast @ A @ ( append @ A @ Xs @ ( cons @ A @ X @ ( nil @ A ) ) ) )
      = Xs ) ).

% butlast_snoc
thf(fact_200_butlast_Osimps_I2_J,axiom,
    ! [A: $tType,Xs: list @ A,X: A] :
      ( ( ( Xs
          = ( nil @ A ) )
       => ( ( butlast @ A @ ( cons @ A @ X @ Xs ) )
          = ( nil @ A ) ) )
      & ( ( Xs
         != ( nil @ A ) )
       => ( ( butlast @ A @ ( cons @ A @ X @ Xs ) )
          = ( cons @ A @ X @ ( butlast @ A @ Xs ) ) ) ) ) ).

% butlast.simps(2)
thf(fact_201_butlast_Osimps_I1_J,axiom,
    ! [A: $tType] :
      ( ( butlast @ A @ ( nil @ A ) )
      = ( nil @ A ) ) ).

% butlast.simps(1)
thf(fact_202_butlast__append,axiom,
    ! [A: $tType,Ys: list @ A,Xs: list @ A] :
      ( ( ( Ys
          = ( nil @ A ) )
       => ( ( butlast @ A @ ( append @ A @ Xs @ Ys ) )
          = ( butlast @ A @ Xs ) ) )
      & ( ( Ys
         != ( nil @ A ) )
       => ( ( butlast @ A @ ( append @ A @ Xs @ Ys ) )
          = ( append @ A @ Xs @ ( butlast @ A @ Ys ) ) ) ) ) ).

% butlast_append
thf(fact_203_snoc__eq__iff__butlast,axiom,
    ! [A: $tType,Xs: list @ A,X: A,Ys: list @ A] :
      ( ( ( append @ A @ Xs @ ( cons @ A @ X @ ( nil @ A ) ) )
        = Ys )
      = ( ( Ys
         != ( nil @ A ) )
        & ( ( butlast @ A @ Ys )
          = Xs )
        & ( ( last @ A @ Ys )
          = X ) ) ) ).

% snoc_eq_iff_butlast
thf(fact_204_prefixes_Oelims,axiom,
    ! [A: $tType,X: list @ A,Y: list @ ( list @ A )] :
      ( ( ( prefixes @ A @ X )
        = Y )
     => ( ( ( X
            = ( nil @ A ) )
         => ( Y
           != ( cons @ ( list @ A ) @ ( nil @ A ) @ ( nil @ ( list @ A ) ) ) ) )
       => ~ ! [X3: A,Xs2: list @ A] :
              ( ( X
                = ( cons @ A @ X3 @ Xs2 ) )
             => ( Y
               != ( cons @ ( list @ A ) @ ( nil @ A ) @ ( map @ ( list @ A ) @ ( list @ A ) @ ( cons @ A @ X3 ) @ ( prefixes @ A @ Xs2 ) ) ) ) ) ) ) ).

% prefixes.elims
thf(fact_205_insert__Nil,axiom,
    ! [A: $tType,X: A] :
      ( ( insert @ A @ X @ ( nil @ A ) )
      = ( cons @ A @ X @ ( nil @ A ) ) ) ).

% insert_Nil
thf(fact_206_list_Omap__disc__iff,axiom,
    ! [B: $tType,A: $tType,F: A > B,A2: list @ A] :
      ( ( ( map @ A @ B @ F @ A2 )
        = ( nil @ B ) )
      = ( A2
        = ( nil @ A ) ) ) ).

% list.map_disc_iff
thf(fact_207_map__is__Nil__conv,axiom,
    ! [A: $tType,B: $tType,F: B > A,Xs: list @ B] :
      ( ( ( map @ B @ A @ F @ Xs )
        = ( nil @ A ) )
      = ( Xs
        = ( nil @ B ) ) ) ).

% map_is_Nil_conv
thf(fact_208_Nil__is__map__conv,axiom,
    ! [A: $tType,B: $tType,F: B > A,Xs: list @ B] :
      ( ( ( nil @ A )
        = ( map @ B @ A @ F @ Xs ) )
      = ( Xs
        = ( nil @ B ) ) ) ).

% Nil_is_map_conv
thf(fact_209_map__append,axiom,
    ! [A: $tType,B: $tType,F: B > A,Xs: list @ B,Ys: list @ B] :
      ( ( map @ B @ A @ F @ ( append @ B @ Xs @ Ys ) )
      = ( append @ A @ ( map @ B @ A @ F @ Xs ) @ ( map @ B @ A @ F @ Ys ) ) ) ).

% map_append
thf(fact_210_map__butlast,axiom,
    ! [A: $tType,B: $tType,F: B > A,Xs: list @ B] :
      ( ( map @ B @ A @ F @ ( butlast @ B @ Xs ) )
      = ( butlast @ A @ ( map @ B @ A @ F @ Xs ) ) ) ).

% map_butlast
thf(fact_211_list_Osimps_I8_J,axiom,
    ! [A: $tType,B: $tType,F: A > B] :
      ( ( map @ A @ B @ F @ ( nil @ A ) )
      = ( nil @ B ) ) ).

% list.simps(8)
thf(fact_212_rev__map,axiom,
    ! [A: $tType,B: $tType,F: B > A,Xs: list @ B] :
      ( ( rev @ A @ ( map @ B @ A @ F @ Xs ) )
      = ( map @ B @ A @ F @ ( rev @ B @ Xs ) ) ) ).

% rev_map
thf(fact_213_map__eq__Cons__conv,axiom,
    ! [A: $tType,B: $tType,F: B > A,Xs: list @ B,Y: A,Ys: list @ A] :
      ( ( ( map @ B @ A @ F @ Xs )
        = ( cons @ A @ Y @ Ys ) )
      = ( ? [Z2: B,Zs2: list @ B] :
            ( ( Xs
              = ( cons @ B @ Z2 @ Zs2 ) )
            & ( ( F @ Z2 )
              = Y )
            & ( ( map @ B @ A @ F @ Zs2 )
              = Ys ) ) ) ) ).

% map_eq_Cons_conv
thf(fact_214_Cons__eq__map__conv,axiom,
    ! [A: $tType,B: $tType,X: A,Xs: list @ A,F: B > A,Ys: list @ B] :
      ( ( ( cons @ A @ X @ Xs )
        = ( map @ B @ A @ F @ Ys ) )
      = ( ? [Z2: B,Zs2: list @ B] :
            ( ( Ys
              = ( cons @ B @ Z2 @ Zs2 ) )
            & ( X
              = ( F @ Z2 ) )
            & ( Xs
              = ( map @ B @ A @ F @ Zs2 ) ) ) ) ) ).

% Cons_eq_map_conv
thf(fact_215_map__eq__Cons__D,axiom,
    ! [B: $tType,A: $tType,F: B > A,Xs: list @ B,Y: A,Ys: list @ A] :
      ( ( ( map @ B @ A @ F @ Xs )
        = ( cons @ A @ Y @ Ys ) )
     => ? [Z3: B,Zs5: list @ B] :
          ( ( Xs
            = ( cons @ B @ Z3 @ Zs5 ) )
          & ( ( F @ Z3 )
            = Y )
          & ( ( map @ B @ A @ F @ Zs5 )
            = Ys ) ) ) ).

% map_eq_Cons_D
thf(fact_216_Cons__eq__map__D,axiom,
    ! [A: $tType,B: $tType,X: A,Xs: list @ A,F: B > A,Ys: list @ B] :
      ( ( ( cons @ A @ X @ Xs )
        = ( map @ B @ A @ F @ Ys ) )
     => ? [Z3: B,Zs5: list @ B] :
          ( ( Ys
            = ( cons @ B @ Z3 @ Zs5 ) )
          & ( X
            = ( F @ Z3 ) )
          & ( Xs
            = ( map @ B @ A @ F @ Zs5 ) ) ) ) ).

% Cons_eq_map_D
thf(fact_217_list_Osimps_I9_J,axiom,
    ! [B: $tType,A: $tType,F: A > B,X21: A,X22: list @ A] :
      ( ( map @ A @ B @ F @ ( cons @ A @ X21 @ X22 ) )
      = ( cons @ B @ ( F @ X21 ) @ ( map @ A @ B @ F @ X22 ) ) ) ).

% list.simps(9)
thf(fact_218_last__map,axiom,
    ! [B: $tType,A: $tType,Xs: list @ A,F: A > B] :
      ( ( Xs
       != ( nil @ A ) )
     => ( ( last @ B @ ( map @ A @ B @ F @ Xs ) )
        = ( F @ ( last @ A @ Xs ) ) ) ) ).

% last_map
thf(fact_219_prefixes_Osimps_I2_J,axiom,
    ! [A: $tType,X: A,Xs: list @ A] :
      ( ( prefixes @ A @ ( cons @ A @ X @ Xs ) )
      = ( cons @ ( list @ A ) @ ( nil @ A ) @ ( map @ ( list @ A ) @ ( list @ A ) @ ( cons @ A @ X ) @ ( prefixes @ A @ Xs ) ) ) ) ).

% prefixes.simps(2)
thf(fact_220_map__tailrec__rev,axiom,
    ! [A: $tType,B: $tType] :
      ( ( map_tailrec_rev @ B @ A )
      = ( ^ [F3: B > A,As2: list @ B] : ( append @ A @ ( rev @ A @ ( map @ B @ A @ F3 @ As2 ) ) ) ) ) ).

% map_tailrec_rev
thf(fact_221_prefixes_Opelims,axiom,
    ! [A: $tType,X: list @ A,Y: list @ ( list @ A )] :
      ( ( ( prefixes @ A @ X )
        = Y )
     => ( ( accp @ ( list @ A ) @ ( prefixes_rel @ A ) @ X )
       => ( ( ( X
              = ( nil @ A ) )
           => ( ( Y
                = ( cons @ ( list @ A ) @ ( nil @ A ) @ ( nil @ ( list @ A ) ) ) )
             => ~ ( accp @ ( list @ A ) @ ( prefixes_rel @ A ) @ ( nil @ A ) ) ) )
         => ~ ! [X3: A,Xs2: list @ A] :
                ( ( X
                  = ( cons @ A @ X3 @ Xs2 ) )
               => ( ( Y
                    = ( cons @ ( list @ A ) @ ( nil @ A ) @ ( map @ ( list @ A ) @ ( list @ A ) @ ( cons @ A @ X3 ) @ ( prefixes @ A @ Xs2 ) ) ) )
                 => ~ ( accp @ ( list @ A ) @ ( prefixes_rel @ A ) @ ( cons @ A @ X3 @ Xs2 ) ) ) ) ) ) ) ).

% prefixes.pelims
thf(fact_222_map__tailrec__rev_Osimps_I1_J,axiom,
    ! [A: $tType,B: $tType,F: A > B,Bs2: list @ B] :
      ( ( map_tailrec_rev @ A @ B @ F @ ( nil @ A ) @ Bs2 )
      = Bs2 ) ).

% map_tailrec_rev.simps(1)
thf(fact_223_map__tailrec__rev_Osimps_I2_J,axiom,
    ! [A: $tType,B: $tType,F: A > B,A2: A,As3: list @ A,Bs2: list @ B] :
      ( ( map_tailrec_rev @ A @ B @ F @ ( cons @ A @ A2 @ As3 ) @ Bs2 )
      = ( map_tailrec_rev @ A @ B @ F @ As3 @ ( cons @ B @ ( F @ A2 ) @ Bs2 ) ) ) ).

% map_tailrec_rev.simps(2)
thf(fact_224_map__tailrec__rev_Oelims,axiom,
    ! [A: $tType,B: $tType,X: A > B,Xa: list @ A,Xb2: list @ B,Y: list @ B] :
      ( ( ( map_tailrec_rev @ A @ B @ X @ Xa @ Xb2 )
        = Y )
     => ( ( ( Xa
            = ( nil @ A ) )
         => ( Y != Xb2 ) )
       => ~ ! [A4: A,As: list @ A] :
              ( ( Xa
                = ( cons @ A @ A4 @ As ) )
             => ( Y
               != ( map_tailrec_rev @ A @ B @ X @ As @ ( cons @ B @ ( X @ A4 ) @ Xb2 ) ) ) ) ) ) ).

% map_tailrec_rev.elims
thf(fact_225_map__tailrec__def,axiom,
    ! [B: $tType,A: $tType] :
      ( ( map_tailrec @ A @ B )
      = ( ^ [F3: A > B,As2: list @ A] : ( rev @ B @ ( map_tailrec_rev @ A @ B @ F3 @ As2 @ ( nil @ B ) ) ) ) ) ).

% map_tailrec_def
thf(fact_226_rotate1_Osimps_I2_J,axiom,
    ! [A: $tType,X: A,Xs: list @ A] :
      ( ( rotate1 @ A @ ( cons @ A @ X @ Xs ) )
      = ( append @ A @ Xs @ ( cons @ A @ X @ ( nil @ A ) ) ) ) ).

% rotate1.simps(2)
thf(fact_227_rotate1__is__Nil__conv,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( ( rotate1 @ A @ Xs )
        = ( nil @ A ) )
      = ( Xs
        = ( nil @ A ) ) ) ).

% rotate1_is_Nil_conv
thf(fact_228_rotate1_Osimps_I1_J,axiom,
    ! [A: $tType] :
      ( ( rotate1 @ A @ ( nil @ A ) )
      = ( nil @ A ) ) ).

% rotate1.simps(1)
thf(fact_229_map__eq__map__tailrec,axiom,
    ! [B: $tType,A: $tType] :
      ( ( map @ A @ B )
      = ( map_tailrec @ A @ B ) ) ).

% map_eq_map_tailrec
thf(fact_230_list__ex1__simps_I1_J,axiom,
    ! [A: $tType,P: A > $o] :
      ~ ( list_ex1 @ A @ P @ ( nil @ A ) ) ).

% list_ex1_simps(1)
thf(fact_231_strict__suffix__def,axiom,
    ! [A: $tType] :
      ( ( strict_suffix @ A )
      = ( ^ [Xs3: list @ A,Ys3: list @ A] :
          ? [Us: list @ A] :
            ( ( Ys3
              = ( append @ A @ Us @ Xs3 ) )
            & ( Us
             != ( nil @ A ) ) ) ) ) ).

% strict_suffix_def
thf(fact_232_ord_Olexordp__eq__simps_I3_J,axiom,
    ! [A: $tType,Less: A > A > $o,X: A,Xs: list @ A] :
      ~ ( lexordp_eq @ A @ Less @ ( cons @ A @ X @ Xs ) @ ( nil @ A ) ) ).

% ord.lexordp_eq_simps(3)
thf(fact_233_nth__append__length,axiom,
    ! [A: $tType,Xs: list @ A,X: A,Ys: list @ A] :
      ( ( nth @ A @ ( append @ A @ Xs @ ( cons @ A @ X @ Ys ) ) @ ( size_size @ ( list @ A ) @ Xs ) )
      = X ) ).

% nth_append_length
thf(fact_234_length__map,axiom,
    ! [A: $tType,B: $tType,F: B > A,Xs: list @ B] :
      ( ( size_size @ ( list @ A ) @ ( map @ B @ A @ F @ Xs ) )
      = ( size_size @ ( list @ B ) @ Xs ) ) ).

% length_map
thf(fact_235_append__eq__append__conv,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A,Us2: list @ A,Vs: list @ A] :
      ( ( ( ( size_size @ ( list @ A ) @ Xs )
          = ( size_size @ ( list @ A ) @ Ys ) )
        | ( ( size_size @ ( list @ A ) @ Us2 )
          = ( size_size @ ( list @ A ) @ Vs ) ) )
     => ( ( ( append @ A @ Xs @ Us2 )
          = ( append @ A @ Ys @ Vs ) )
        = ( ( Xs = Ys )
          & ( Us2 = Vs ) ) ) ) ).

% append_eq_append_conv
thf(fact_236_length__rev,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( size_size @ ( list @ A ) @ ( rev @ A @ Xs ) )
      = ( size_size @ ( list @ A ) @ Xs ) ) ).

% length_rev
thf(fact_237_ord_Olexordp__eq__simps_I4_J,axiom,
    ! [A: $tType,Less: A > A > $o,X: A,Xs: list @ A,Y: A,Ys: list @ A] :
      ( ( lexordp_eq @ A @ Less @ ( cons @ A @ X @ Xs ) @ ( cons @ A @ Y @ Ys ) )
      = ( ( Less @ X @ Y )
        | ( ~ ( Less @ Y @ X )
          & ( lexordp_eq @ A @ Less @ Xs @ Ys ) ) ) ) ).

% ord.lexordp_eq_simps(4)
thf(fact_238_ord_Olexordp__eq__simps_I2_J,axiom,
    ! [A: $tType,Less: A > A > $o,Xs: list @ A] :
      ( ( lexordp_eq @ A @ Less @ Xs @ ( nil @ A ) )
      = ( Xs
        = ( nil @ A ) ) ) ).

% ord.lexordp_eq_simps(2)
thf(fact_239_ord_Olexordp__eq__simps_I1_J,axiom,
    ! [A: $tType,Less: A > A > $o,Ys: list @ A] : ( lexordp_eq @ A @ Less @ ( nil @ A ) @ Ys ) ).

% ord.lexordp_eq_simps(1)
thf(fact_240_length__rotate1,axiom,
    ! [A: $tType,Xs: list @ A] :
      ( ( size_size @ ( list @ A ) @ ( rotate1 @ A @ Xs ) )
      = ( size_size @ ( list @ A ) @ Xs ) ) ).

% length_rotate1
thf(fact_241_map__eq__imp__length__eq,axiom,
    ! [A: $tType,B: $tType,C: $tType,F: B > A,Xs: list @ B,G: C > A,Ys: list @ C] :
      ( ( ( map @ B @ A @ F @ Xs )
        = ( map @ C @ A @ G @ Ys ) )
     => ( ( size_size @ ( list @ B ) @ Xs )
        = ( size_size @ ( list @ C ) @ Ys ) ) ) ).

% map_eq_imp_length_eq
thf(fact_242_ord_Olexordp__eq_Oinducts,axiom,
    ! [A: $tType,Less: A > A > $o,X12: list @ A,X24: list @ A,P: ( list @ A ) > ( list @ A ) > $o] :
      ( ( lexordp_eq @ A @ Less @ X12 @ X24 )
     => ( ! [X1: list @ A] : ( P @ ( nil @ A ) @ X1 )
       => ( ! [X3: A,Y3: A,Xs2: list @ A,Ys2: list @ A] :
              ( ( Less @ X3 @ Y3 )
             => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ A @ Y3 @ Ys2 ) ) )
         => ( ! [X3: A,Y3: A,Xs2: list @ A,Ys2: list @ A] :
                ( ~ ( Less @ X3 @ Y3 )
               => ( ~ ( Less @ Y3 @ X3 )
                 => ( ( lexordp_eq @ A @ Less @ Xs2 @ Ys2 )
                   => ( ( P @ Xs2 @ Ys2 )
                     => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ A @ Y3 @ Ys2 ) ) ) ) ) )
           => ( P @ X12 @ X24 ) ) ) ) ) ).

% ord.lexordp_eq.inducts
thf(fact_243_ord_Olexordp__eq_Osimps,axiom,
    ! [A: $tType] :
      ( ( lexordp_eq @ A )
      = ( ^ [Less2: A > A > $o,A12: list @ A,A23: list @ A] :
            ( ? [Ys3: list @ A] :
                ( ( A12
                  = ( nil @ A ) )
                & ( A23 = Ys3 ) )
            | ? [X2: A,Y2: A,Xs3: list @ A,Ys3: list @ A] :
                ( ( A12
                  = ( cons @ A @ X2 @ Xs3 ) )
                & ( A23
                  = ( cons @ A @ Y2 @ Ys3 ) )
                & ( Less2 @ X2 @ Y2 ) )
            | ? [X2: A,Y2: A,Xs3: list @ A,Ys3: list @ A] :
                ( ( A12
                  = ( cons @ A @ X2 @ Xs3 ) )
                & ( A23
                  = ( cons @ A @ Y2 @ Ys3 ) )
                & ~ ( Less2 @ X2 @ Y2 )
                & ~ ( Less2 @ Y2 @ X2 )
                & ( lexordp_eq @ A @ Less2 @ Xs3 @ Ys3 ) ) ) ) ) ).

% ord.lexordp_eq.simps
thf(fact_244_ord_Olexordp__eq_Ocases,axiom,
    ! [A: $tType,Less: A > A > $o,A1: list @ A,A22: list @ A] :
      ( ( lexordp_eq @ A @ Less @ A1 @ A22 )
     => ( ( ( A1
            = ( nil @ A ) )
         => ! [Ys2: list @ A] : A22 != Ys2 )
       => ( ! [X3: A] :
              ( ? [Xs2: list @ A] :
                  ( A1
                  = ( cons @ A @ X3 @ Xs2 ) )
             => ! [Y3: A] :
                  ( ? [Ys2: list @ A] :
                      ( A22
                      = ( cons @ A @ Y3 @ Ys2 ) )
                 => ~ ( Less @ X3 @ Y3 ) ) )
         => ~ ! [X3: A,Y3: A,Xs2: list @ A] :
                ( ( A1
                  = ( cons @ A @ X3 @ Xs2 ) )
               => ! [Ys2: list @ A] :
                    ( ( A22
                      = ( cons @ A @ Y3 @ Ys2 ) )
                   => ( ~ ( Less @ X3 @ Y3 )
                     => ( ~ ( Less @ Y3 @ X3 )
                       => ~ ( lexordp_eq @ A @ Less @ Xs2 @ Ys2 ) ) ) ) ) ) ) ) ).

% ord.lexordp_eq.cases
thf(fact_245_ord_Olexordp__eq_OCons,axiom,
    ! [A: $tType,Less: A > A > $o,X: A,Y: A,Xs: list @ A,Ys: list @ A] :
      ( ( Less @ X @ Y )
     => ( lexordp_eq @ A @ Less @ ( cons @ A @ X @ Xs ) @ ( cons @ A @ Y @ Ys ) ) ) ).

% ord.lexordp_eq.Cons
thf(fact_246_ord_Olexordp__eq_OCons__eq,axiom,
    ! [A: $tType,Less: A > A > $o,X: A,Y: A,Xs: list @ A,Ys: list @ A] :
      ( ~ ( Less @ X @ Y )
     => ( ~ ( Less @ Y @ X )
       => ( ( lexordp_eq @ A @ Less @ Xs @ Ys )
         => ( lexordp_eq @ A @ Less @ ( cons @ A @ X @ Xs ) @ ( cons @ A @ Y @ Ys ) ) ) ) ) ).

% ord.lexordp_eq.Cons_eq
thf(fact_247_ord_Olexordp__eq_ONil,axiom,
    ! [A: $tType,Less: A > A > $o,Ys: list @ A] : ( lexordp_eq @ A @ Less @ ( nil @ A ) @ Ys ) ).

% ord.lexordp_eq.Nil
thf(fact_248_list__induct4,axiom,
    ! [C: $tType,A: $tType,B: $tType,D: $tType,Xs: list @ A,Ys: list @ B,Zs: list @ C,Ws: list @ D,P: ( list @ A ) > ( list @ B ) > ( list @ C ) > ( list @ D ) > $o] :
      ( ( ( size_size @ ( list @ A ) @ Xs )
        = ( size_size @ ( list @ B ) @ Ys ) )
     => ( ( ( size_size @ ( list @ B ) @ Ys )
          = ( size_size @ ( list @ C ) @ Zs ) )
       => ( ( ( size_size @ ( list @ C ) @ Zs )
            = ( size_size @ ( list @ D ) @ Ws ) )
         => ( ( P @ ( nil @ A ) @ ( nil @ B ) @ ( nil @ C ) @ ( nil @ D ) )
           => ( ! [X3: A,Xs2: list @ A,Y3: B,Ys2: list @ B,Z3: C,Zs5: list @ C,W: D,Ws2: list @ D] :
                  ( ( ( size_size @ ( list @ A ) @ Xs2 )
                    = ( size_size @ ( list @ B ) @ Ys2 ) )
                 => ( ( ( size_size @ ( list @ B ) @ Ys2 )
                      = ( size_size @ ( list @ C ) @ Zs5 ) )
                   => ( ( ( size_size @ ( list @ C ) @ Zs5 )
                        = ( size_size @ ( list @ D ) @ Ws2 ) )
                     => ( ( P @ Xs2 @ Ys2 @ Zs5 @ Ws2 )
                       => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ B @ Y3 @ Ys2 ) @ ( cons @ C @ Z3 @ Zs5 ) @ ( cons @ D @ W @ Ws2 ) ) ) ) ) )
             => ( P @ Xs @ Ys @ Zs @ Ws ) ) ) ) ) ) ).

% list_induct4
thf(fact_249_list__induct3,axiom,
    ! [B: $tType,A: $tType,C: $tType,Xs: list @ A,Ys: list @ B,Zs: list @ C,P: ( list @ A ) > ( list @ B ) > ( list @ C ) > $o] :
      ( ( ( size_size @ ( list @ A ) @ Xs )
        = ( size_size @ ( list @ B ) @ Ys ) )
     => ( ( ( size_size @ ( list @ B ) @ Ys )
          = ( size_size @ ( list @ C ) @ Zs ) )
       => ( ( P @ ( nil @ A ) @ ( nil @ B ) @ ( nil @ C ) )
         => ( ! [X3: A,Xs2: list @ A,Y3: B,Ys2: list @ B,Z3: C,Zs5: list @ C] :
                ( ( ( size_size @ ( list @ A ) @ Xs2 )
                  = ( size_size @ ( list @ B ) @ Ys2 ) )
               => ( ( ( size_size @ ( list @ B ) @ Ys2 )
                    = ( size_size @ ( list @ C ) @ Zs5 ) )
                 => ( ( P @ Xs2 @ Ys2 @ Zs5 )
                   => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ B @ Y3 @ Ys2 ) @ ( cons @ C @ Z3 @ Zs5 ) ) ) ) )
           => ( P @ Xs @ Ys @ Zs ) ) ) ) ) ).

% list_induct3
thf(fact_250_list__induct2,axiom,
    ! [A: $tType,B: $tType,Xs: list @ A,Ys: list @ B,P: ( list @ A ) > ( list @ B ) > $o] :
      ( ( ( size_size @ ( list @ A ) @ Xs )
        = ( size_size @ ( list @ B ) @ Ys ) )
     => ( ( P @ ( nil @ A ) @ ( nil @ B ) )
       => ( ! [X3: A,Xs2: list @ A,Y3: B,Ys2: list @ B] :
              ( ( ( size_size @ ( list @ A ) @ Xs2 )
                = ( size_size @ ( list @ B ) @ Ys2 ) )
             => ( ( P @ Xs2 @ Ys2 )
               => ( P @ ( cons @ A @ X3 @ Xs2 ) @ ( cons @ B @ Y3 @ Ys2 ) ) ) )
         => ( P @ Xs @ Ys ) ) ) ) ).

% list_induct2
thf(fact_251_ord_Olexordp__eq__refl,axiom,
    ! [A: $tType,Less: A > A > $o,Xs: list @ A] : ( lexordp_eq @ A @ Less @ Xs @ Xs ) ).

% ord.lexordp_eq_refl
thf(fact_252_neq__if__length__neq,axiom,
    ! [A: $tType,Xs: list @ A,Ys: list @ A] :
      ( ( ( size_size @ ( list @ A ) @ Xs )
       != ( size_size @ ( list @ A ) @ Ys ) )
     => ( Xs != Ys ) ) ).

% neq_if_length_neq

%----Helper facts (3)
thf(help_If_3_1_T,axiom,
    ! [P: $o] :
      ( ( P = $true )
      | ( P = $false ) ) ).

thf(help_If_2_1_T,axiom,
    ! [A: $tType,X: A,Y: A] :
      ( ( if @ A @ $false @ X @ Y )
      = Y ) ).

thf(help_If_1_1_T,axiom,
    ! [A: $tType,X: A,Y: A] :
      ( ( if @ A @ $true @ X @ Y )
      = X ) ).

%----Conjectures (1)
thf(conj_0,conjecture,
    ( ( coindu268472904append @ a @ ( coindu288502823_llist @ a @ f ) @ xs )
    = ( coindu288502823_llist @ a @ f ) ) ).

%------------------------------------------------------------------------------