TSTP Solution File: SET884+1 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SET884+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n012.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 05:29:34 EDT 2022

% Result   : Theorem 0.19s 0.45s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :    7
% Syntax   : Number of clauses     :   17 (   9 unt;   1 nHn;  17 RR)
%            Number of literals    :   30 (   0 equ;  19 neg)
%            Maximal clause size   :    4 (   1 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   7 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(4,axiom,
    ~ equal(skc7,skc5),
    file('SET884+1.p',unknown),
    [] ).

cnf(5,axiom,
    ~ equal(skc6,skc5),
    file('SET884+1.p',unknown),
    [] ).

cnf(6,axiom,
    subset(singleton(skc5),unordered_pair(skc7,skc6)),
    file('SET884+1.p',unknown),
    [] ).

cnf(7,axiom,
    equal(unordered_pair(u,v),unordered_pair(v,u)),
    file('SET884+1.p',unknown),
    [] ).

cnf(11,axiom,
    ( ~ in(u,v)
    | ~ subset(v,w)
    | in(u,w) ),
    file('SET884+1.p',unknown),
    [] ).

cnf(13,axiom,
    ( ~ equal(u,v)
    | ~ equal(w,singleton(v))
    | in(u,w) ),
    file('SET884+1.p',unknown),
    [] ).

cnf(18,axiom,
    ( ~ in(u,v)
    | ~ equal(v,unordered_pair(w,x))
    | equal(u,x)
    | equal(u,w) ),
    file('SET884+1.p',unknown),
    [] ).

cnf(22,plain,
    subset(singleton(skc5),unordered_pair(skc6,skc7)),
    inference(rew,[status(thm),theory(equality)],[7,6]),
    [iquote('0:Rew:7.0,6.0')] ).

cnf(28,plain,
    ( ~ equal(u,unordered_pair(v,skc6))
    | ~ in(skc5,u)
    | equal(skc5,v) ),
    inference(res,[status(thm),theory(equality)],[18,5]),
    [iquote('0:Res:18.3,5.0')] ).

cnf(35,plain,
    ( ~ in(u,singleton(skc5))
    | in(u,unordered_pair(skc6,skc7)) ),
    inference(res,[status(thm),theory(equality)],[22,11]),
    [iquote('0:Res:22.0,11.0')] ).

cnf(40,plain,
    ( ~ in(skc5,u)
    | ~ equal(u,unordered_pair(skc7,skc6)) ),
    inference(res,[status(thm),theory(equality)],[28,4]),
    [iquote('0:Res:28.2,4.0')] ).

cnf(48,plain,
    ( ~ equal(u,unordered_pair(skc6,skc7))
    | ~ in(skc5,u) ),
    inference(rew,[status(thm),theory(equality)],[7,40]),
    [iquote('0:Rew:7.0,40.1')] ).

cnf(65,plain,
    ~ in(skc5,unordered_pair(skc6,skc7)),
    inference(eqr,[status(thm),theory(equality)],[48]),
    [iquote('0:EqR:48.0')] ).

cnf(66,plain,
    ~ in(skc5,singleton(skc5)),
    inference(res,[status(thm),theory(equality)],[35,65]),
    [iquote('0:Res:35.1,65.0')] ).

cnf(67,plain,
    ( ~ equal(u,v)
    | in(u,singleton(v)) ),
    inference(eqr,[status(thm),theory(equality)],[13]),
    [iquote('0:EqR:13.1')] ).

cnf(75,plain,
    ~ equal(skc5,skc5),
    inference(res,[status(thm),theory(equality)],[67,66]),
    [iquote('0:Res:67.1,66.0')] ).

cnf(76,plain,
    $false,
    inference(obv,[status(thm),theory(equality)],[75]),
    [iquote('0:Obv:75.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET884+1 : TPTP v8.1.0. Released v3.2.0.
% 0.07/0.13  % Command  : run_spass %d %s
% 0.13/0.33  % Computer : n012.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 600
% 0.13/0.33  % DateTime : Mon Jul 11 06:41:43 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.19/0.45  
% 0.19/0.45  SPASS V 3.9 
% 0.19/0.45  SPASS beiseite: Proof found.
% 0.19/0.45  % SZS status Theorem
% 0.19/0.45  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.19/0.45  SPASS derived 51 clauses, backtracked 0 clauses, performed 0 splits and kept 60 clauses.
% 0.19/0.45  SPASS allocated 85522 KBytes.
% 0.19/0.45  SPASS spent	0:00:00.10 on the problem.
% 0.19/0.45  		0:00:00.04 for the input.
% 0.19/0.45  		0:00:00.04 for the FLOTTER CNF translation.
% 0.19/0.45  		0:00:00.00 for inferences.
% 0.19/0.45  		0:00:00.00 for the backtracking.
% 0.19/0.45  		0:00:00.00 for the reduction.
% 0.19/0.45  
% 0.19/0.45  
% 0.19/0.45  Here is a proof with depth 5, length 17 :
% 0.19/0.45  % SZS output start Refutation
% See solution above
% 0.19/0.45  Formulae used in the proof : t25_zfmisc_1 commutativity_k2_tarski d3_tarski d1_tarski d2_tarski
% 0.19/0.45  
%------------------------------------------------------------------------------