TSTP Solution File: GRP586-1 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP586-1 : TPTP v8.1.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n028.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 : Sat Jul 16 11:48:09 EDT 2022

% Result   : Unsatisfiable 0.19s 0.47s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    3
% Syntax   : Number of clauses     :   18 (  18 unt;   0 nHn;  18 RR)
%            Number of literals    :   18 (   0 equ;   3 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   6 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    equal(double_divide(u,inverse(double_divide(inverse(double_divide(double_divide(u,v),inverse(w))),v))),w),
    file('GRP586-1.p',unknown),
    [] ).

cnf(2,axiom,
    equal(inverse(double_divide(u,v)),multiply(v,u)),
    file('GRP586-1.p',unknown),
    [] ).

cnf(3,axiom,
    ~ equal(multiply(multiply(inverse(b2),b2),a2),a2),
    file('GRP586-1.p',unknown),
    [] ).

cnf(4,plain,
    equal(double_divide(u,multiply(v,multiply(inverse(w),double_divide(u,v)))),w),
    inference(rew,[status(thm),theory(equality)],[2,1]),
    [iquote('0:Rew:2.0,1.0,2.0,1.0')] ).

cnf(6,plain,
    equal(multiply(multiply(u,multiply(inverse(v),double_divide(w,u))),w),inverse(v)),
    inference(spr,[status(thm),theory(equality)],[4,2]),
    [iquote('0:SpR:4.0,2.0')] ).

cnf(7,plain,
    equal(double_divide(u,multiply(multiply(v,multiply(inverse(w),double_divide(u,v))),multiply(inverse(x),w))),x),
    inference(spr,[status(thm),theory(equality)],[4]),
    [iquote('0:SpR:4.0,4.0')] ).

cnf(44,plain,
    equal(double_divide(multiply(inverse(u),v),inverse(v)),u),
    inference(spr,[status(thm),theory(equality)],[6,7]),
    [iquote('0:SpR:6.0,7.0')] ).

cnf(45,plain,
    equal(multiply(inverse(u),multiply(inverse(v),u)),inverse(v)),
    inference(spr,[status(thm),theory(equality)],[44,2]),
    [iquote('0:SpR:44.0,2.0')] ).

cnf(56,plain,
    equal(double_divide(inverse(u),inverse(multiply(inverse(u),v))),v),
    inference(spr,[status(thm),theory(equality)],[45,44]),
    [iquote('0:SpR:45.0,44.0')] ).

cnf(94,plain,
    equal(double_divide(inverse(u),inverse(inverse(v))),multiply(inverse(v),u)),
    inference(spr,[status(thm),theory(equality)],[45,56]),
    [iquote('0:SpR:45.0,56.0')] ).

cnf(119,plain,
    equal(double_divide(inverse(u),inverse(multiply(v,w))),multiply(multiply(v,w),u)),
    inference(spr,[status(thm),theory(equality)],[2,94]),
    [iquote('0:SpR:2.0,94.0')] ).

cnf(121,plain,
    equal(multiply(multiply(inverse(u),v),u),v),
    inference(rew,[status(thm),theory(equality)],[119,56]),
    [iquote('0:Rew:119.0,56.0')] ).

cnf(125,plain,
    equal(multiply(inverse(u),double_divide(v,inverse(v))),inverse(u)),
    inference(spr,[status(thm),theory(equality)],[121,6]),
    [iquote('0:SpR:121.0,6.0')] ).

cnf(167,plain,
    equal(multiply(inverse(u),u),double_divide(v,inverse(v))),
    inference(spr,[status(thm),theory(equality)],[125,121]),
    [iquote('0:SpR:125.0,121.0')] ).

cnf(205,plain,
    equal(multiply(double_divide(u,inverse(u)),v),v),
    inference(spr,[status(thm),theory(equality)],[167,121]),
    [iquote('0:SpR:167.0,121.0')] ).

cnf(225,plain,
    ~ equal(multiply(double_divide(u,inverse(u)),a2),a2),
    inference(spl,[status(thm),theory(equality)],[167,3]),
    [iquote('0:SpL:167.0,3.0')] ).

cnf(226,plain,
    ~ equal(a2,a2),
    inference(rew,[status(thm),theory(equality)],[205,225]),
    [iquote('0:Rew:205.0,225.0')] ).

cnf(227,plain,
    $false,
    inference(obv,[status(thm),theory(equality)],[226]),
    [iquote('0:Obv:226.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : GRP586-1 : TPTP v8.1.0. Released v2.6.0.
% 0.11/0.13  % Command  : run_spass %d %s
% 0.12/0.34  % Computer : n028.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % 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 : Mon Jun 13 23:38:08 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.19/0.47  
% 0.19/0.47  SPASS V 3.9 
% 0.19/0.47  SPASS beiseite: Proof found.
% 0.19/0.47  % SZS status Theorem
% 0.19/0.47  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.19/0.47  SPASS derived 186 clauses, backtracked 0 clauses, performed 0 splits and kept 120 clauses.
% 0.19/0.47  SPASS allocated 63623 KBytes.
% 0.19/0.47  SPASS spent	0:00:00.11 on the problem.
% 0.19/0.47  		0:00:00.04 for the input.
% 0.19/0.47  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.47  		0:00:00.00 for inferences.
% 0.19/0.47  		0:00:00.00 for the backtracking.
% 0.19/0.47  		0:00:00.04 for the reduction.
% 0.19/0.47  
% 0.19/0.47  
% 0.19/0.47  Here is a proof with depth 7, length 18 :
% 0.19/0.47  % SZS output start Refutation
% See solution above
% 0.19/0.47  Formulae used in the proof : single_axiom multiply prove_these_axioms_2
% 0.19/0.47  
%------------------------------------------------------------------------------