TSTP Solution File: SET696+4 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SET696+4 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n021.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  : 600s
% DateTime : Tue Jul 19 05:28:09 EDT 2022

% Result   : Theorem 65.53s 65.72s
% Output   : Refutation 65.53s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    5
%            Number of leaves      :    7
% Syntax   : Number of clauses     :   16 (   6 unt;   4 nHn;  16 RR)
%            Number of literals    :   27 (   0 equ;  12 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :   10 (  10 usr;   7 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(2,axiom,
    ~ member(u,empty_set),
    file('SET696+4.p',unknown),
    [] ).

cnf(7,axiom,
    ~ equal_set(intersection(difference(skc3,skc2),skc2),empty_set),
    file('SET696+4.p',unknown),
    [] ).

cnf(8,axiom,
    ( subset(u,v)
    | member(skf3(v,u),u) ),
    file('SET696+4.p',unknown),
    [] ).

cnf(14,axiom,
    ( ~ member(u,intersection(v,w))
    | member(u,v) ),
    file('SET696+4.p',unknown),
    [] ).

cnf(15,axiom,
    ( ~ member(u,intersection(v,w))
    | member(u,w) ),
    file('SET696+4.p',unknown),
    [] ).

cnf(22,axiom,
    ( ~ member(u,v)
    | ~ member(u,difference(w,v)) ),
    file('SET696+4.p',unknown),
    [] ).

cnf(25,axiom,
    ( ~ subset(u,v)
    | ~ subset(v,u)
    | equal_set(v,u) ),
    file('SET696+4.p',unknown),
    [] ).

cnf(36,plain,
    ( ~ subset(empty_set,intersection(difference(skc3,skc2),skc2))
    | ~ subset(intersection(difference(skc3,skc2),skc2),empty_set) ),
    inference(res,[status(thm),theory(equality)],[25,7]),
    [iquote('0:Res:25.2,7.0')] ).

cnf(44,plain,
    subset(empty_set,u),
    inference(res,[status(thm),theory(equality)],[8,2]),
    [iquote('0:Res:8.1,2.0')] ).

cnf(47,plain,
    ~ subset(intersection(difference(skc3,skc2),skc2),empty_set),
    inference(mrr,[status(thm)],[36,44]),
    [iquote('0:MRR:36.0,44.0')] ).

cnf(65,plain,
    ( subset(intersection(u,v),w)
    | member(skf3(w,intersection(u,v)),v) ),
    inference(res,[status(thm),theory(equality)],[8,15]),
    [iquote('0:Res:8.1,15.0')] ).

cnf(67,plain,
    ( subset(intersection(u,v),w)
    | member(skf3(w,intersection(u,v)),u) ),
    inference(res,[status(thm),theory(equality)],[8,14]),
    [iquote('0:Res:8.1,14.0')] ).

cnf(716,plain,
    ( ~ member(skf3(u,intersection(difference(v,w),x)),w)
    | subset(intersection(difference(v,w),x),u) ),
    inference(res,[status(thm),theory(equality)],[67,22]),
    [iquote('0:Res:67.1,22.1')] ).

cnf(50307,plain,
    ( subset(intersection(difference(u,v),v),w)
    | subset(intersection(difference(u,v),v),w) ),
    inference(res,[status(thm),theory(equality)],[65,716]),
    [iquote('0:Res:65.1,716.0')] ).

cnf(50395,plain,
    subset(intersection(difference(u,v),v),w),
    inference(obv,[status(thm),theory(equality)],[50307]),
    [iquote('0:Obv:50307.0')] ).

cnf(50396,plain,
    $false,
    inference(unc,[status(thm)],[50395,47]),
    [iquote('0:UnC:50395.0,47.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : SET696+4 : TPTP v8.1.0. Released v2.2.0.
% 0.11/0.13  % Command  : run_spass %d %s
% 0.12/0.33  % Computer : n021.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Sat Jul  9 21:03:06 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 65.53/65.72  
% 65.53/65.72  SPASS V 3.9 
% 65.53/65.72  SPASS beiseite: Proof found.
% 65.53/65.72  % SZS status Theorem
% 65.53/65.72  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 65.53/65.72  SPASS derived 43721 clauses, backtracked 0 clauses, performed 0 splits and kept 19977 clauses.
% 65.53/65.72  SPASS allocated 125552 KBytes.
% 65.53/65.72  SPASS spent	0:01:03.31 on the problem.
% 65.53/65.72  		0:00:00.04 for the input.
% 65.53/65.72  		0:00:00.04 for the FLOTTER CNF translation.
% 65.53/65.72  		0:00:00.54 for inferences.
% 65.53/65.72  		0:00:00.00 for the backtracking.
% 65.53/65.72  		0:01:02.08 for the reduction.
% 65.53/65.72  
% 65.53/65.72  
% 65.53/65.72  Here is a proof with depth 3, length 16 :
% 65.53/65.72  % SZS output start Refutation
% See solution above
% 65.53/65.72  Formulae used in the proof : empty_set thI28 subset intersection difference equal_set
% 65.53/65.72  
%------------------------------------------------------------------------------