TSTP Solution File: LCL153-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : LCL153-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n023.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 : Sun Jul 17 14:34:57 EDT 2022

% Result   : Unsatisfiable 0.17s 0.48s
% Output   : Refutation 0.17s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   27
%            Number of leaves      :   12
% Syntax   : Number of clauses     :   66 (  66 unt;   0 nHn;  66 RR)
%            Number of literals    :   66 (   0 equ;   1 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :   12 (  12 usr;   6 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ~ equal(xor__dfg(x__dfg,truth),not__dfg(x__dfg)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(2,axiom,
    equal(implies__dfg(truth,u),u),
    file('LCL153-1.p',unknown),
    [] ).

cnf(3,axiom,
    equal(implies__dfg(implies__dfg(u,v),implies__dfg(implies__dfg(v,w),implies__dfg(u,w))),truth),
    file('LCL153-1.p',unknown),
    [] ).

cnf(4,axiom,
    equal(implies__dfg(implies__dfg(u,v),v),implies__dfg(implies__dfg(v,u),u)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(5,axiom,
    equal(implies__dfg(implies__dfg(not__dfg(u),not__dfg(v)),implies__dfg(v,u)),truth),
    file('LCL153-1.p',unknown),
    [] ).

cnf(6,axiom,
    equal(implies__dfg(not__dfg(u),v),or__dfg(u,v)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(8,axiom,
    equal(or__dfg(u,v),or__dfg(v,u)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(9,axiom,
    equal(not__dfg(or__dfg(not__dfg(u),not__dfg(v))),and__dfg(u,v)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(11,axiom,
    equal(and__dfg(u,v),and__dfg(v,u)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(12,axiom,
    equal(or__dfg(and__dfg(u,not__dfg(v)),and__dfg(not__dfg(u),v)),xor__dfg(u,v)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(14,axiom,
    equal(not__dfg(or__dfg(not__dfg(u),not__dfg(v))),and_star(u,v)),
    file('LCL153-1.p',unknown),
    [] ).

cnf(17,axiom,
    equal(not__dfg(truth),falsehood),
    file('LCL153-1.p',unknown),
    [] ).

cnf(18,plain,
    equal(and_star(u,v),and__dfg(u,v)),
    inference(rew,[status(thm),theory(equality)],[14,9]),
    [iquote('0:Rew:14.0,9.0')] ).

cnf(20,plain,
    equal(not__dfg(or__dfg(not__dfg(u),not__dfg(v))),and__dfg(u,v)),
    inference(rew,[status(thm),theory(equality)],[18,14]),
    [iquote('0:Rew:18.0,14.0')] ).

cnf(23,plain,
    equal(implies__dfg(or__dfg(u,not__dfg(v)),implies__dfg(v,u)),truth),
    inference(rew,[status(thm),theory(equality)],[6,5]),
    [iquote('0:Rew:6.0,5.0')] ).

cnf(40,plain,
    equal(implies__dfg(falsehood,u),or__dfg(truth,u)),
    inference(spr,[status(thm),theory(equality)],[17,6]),
    [iquote('0:SpR:17.0,6.0')] ).

cnf(44,plain,
    equal(implies__dfg(or__dfg(u,not__dfg(truth)),u),truth),
    inference(spr,[status(thm),theory(equality)],[2,23]),
    [iquote('0:SpR:2.0,23.0')] ).

cnf(45,plain,
    equal(implies__dfg(or__dfg(u,not__dfg(falsehood)),or__dfg(truth,u)),truth),
    inference(spr,[status(thm),theory(equality)],[40,23]),
    [iquote('0:SpR:40.0,23.0')] ).

cnf(50,plain,
    equal(implies__dfg(or__dfg(u,falsehood),u),truth),
    inference(rew,[status(thm),theory(equality)],[17,44]),
    [iquote('0:Rew:17.0,44.0')] ).

cnf(54,plain,
    equal(implies__dfg(or__dfg(falsehood,u),u),truth),
    inference(spr,[status(thm),theory(equality)],[8,50]),
    [iquote('0:SpR:8.0,50.0')] ).

cnf(56,plain,
    equal(implies__dfg(or__dfg(u,not__dfg(or__dfg(falsehood,u))),truth),truth),
    inference(spr,[status(thm),theory(equality)],[54,23]),
    [iquote('0:SpR:54.0,23.0')] ).

cnf(77,plain,
    equal(not__dfg(or__dfg(not__dfg(u),falsehood)),and__dfg(u,truth)),
    inference(spr,[status(thm),theory(equality)],[17,20]),
    [iquote('0:SpR:17.0,20.0')] ).

cnf(81,plain,
    equal(not__dfg(or__dfg(falsehood,not__dfg(u))),and__dfg(u,truth)),
    inference(rew,[status(thm),theory(equality)],[8,77]),
    [iquote('0:Rew:8.0,77.0')] ).

cnf(130,plain,
    equal(implies__dfg(or__dfg(not__dfg(u),and__dfg(u,truth)),truth),truth),
    inference(spr,[status(thm),theory(equality)],[81,56]),
    [iquote('0:SpR:81.0,56.0')] ).

cnf(137,plain,
    equal(implies__dfg(u,u),implies__dfg(implies__dfg(u,truth),truth)),
    inference(spr,[status(thm),theory(equality)],[2,4]),
    [iquote('0:SpR:2.0,4.0')] ).

cnf(138,plain,
    equal(implies__dfg(or__dfg(truth,u),u),implies__dfg(implies__dfg(u,falsehood),falsehood)),
    inference(spr,[status(thm),theory(equality)],[40,4]),
    [iquote('0:SpR:40.0,4.0')] ).

cnf(146,plain,
    equal(implies__dfg(implies__dfg(not__dfg(u),truth),truth),or__dfg(u,not__dfg(u))),
    inference(spr,[status(thm),theory(equality)],[137,6]),
    [iquote('0:SpR:137.0,6.0')] ).

cnf(163,plain,
    equal(implies__dfg(or__dfg(u,truth),truth),or__dfg(u,not__dfg(u))),
    inference(rew,[status(thm),theory(equality)],[6,146]),
    [iquote('0:Rew:6.0,146.0')] ).

cnf(241,plain,
    equal(or__dfg(falsehood,not__dfg(falsehood)),truth),
    inference(spr,[status(thm),theory(equality)],[163,54]),
    [iquote('0:SpR:163.0,54.0')] ).

cnf(286,plain,
    equal(implies__dfg(truth,not__dfg(falsehood)),truth),
    inference(spr,[status(thm),theory(equality)],[241,54]),
    [iquote('0:SpR:241.0,54.0')] ).

cnf(294,plain,
    equal(not__dfg(falsehood),truth),
    inference(rew,[status(thm),theory(equality)],[2,286]),
    [iquote('0:Rew:2.0,286.0')] ).

cnf(295,plain,
    equal(implies__dfg(or__dfg(u,truth),or__dfg(truth,u)),truth),
    inference(rew,[status(thm),theory(equality)],[294,45]),
    [iquote('0:Rew:294.0,45.0')] ).

cnf(326,plain,
    equal(implies__dfg(truth,u),or__dfg(falsehood,u)),
    inference(spr,[status(thm),theory(equality)],[294,6]),
    [iquote('0:SpR:294.0,6.0')] ).

cnf(327,plain,
    equal(not__dfg(or__dfg(truth,not__dfg(u))),and__dfg(falsehood,u)),
    inference(spr,[status(thm),theory(equality)],[294,20]),
    [iquote('0:SpR:294.0,20.0')] ).

cnf(334,plain,
    equal(or__dfg(falsehood,u),u),
    inference(rew,[status(thm),theory(equality)],[2,326]),
    [iquote('0:Rew:2.0,326.0')] ).

cnf(337,plain,
    equal(not__dfg(not__dfg(u)),and__dfg(u,truth)),
    inference(rew,[status(thm),theory(equality)],[334,81]),
    [iquote('0:Rew:334.0,81.0')] ).

cnf(338,plain,
    equal(implies__dfg(u,u),truth),
    inference(rew,[status(thm),theory(equality)],[334,54]),
    [iquote('0:Rew:334.0,54.0')] ).

cnf(354,plain,
    equal(implies__dfg(implies__dfg(u,truth),truth),truth),
    inference(rew,[status(thm),theory(equality)],[338,137]),
    [iquote('0:Rew:338.0,137.0')] ).

cnf(406,plain,
    equal(or__dfg(and__dfg(u,truth),and__dfg(not__dfg(u),falsehood)),xor__dfg(u,falsehood)),
    inference(spr,[status(thm),theory(equality)],[294,12]),
    [iquote('0:SpR:294.0,12.0')] ).

cnf(413,plain,
    equal(or__dfg(and__dfg(u,truth),and__dfg(falsehood,not__dfg(u))),xor__dfg(u,falsehood)),
    inference(rew,[status(thm),theory(equality)],[11,406]),
    [iquote('0:Rew:11.0,406.0')] ).

cnf(423,plain,
    equal(or__dfg(u,falsehood),u),
    inference(spr,[status(thm),theory(equality)],[334,8]),
    [iquote('0:SpR:334.0,8.0')] ).

cnf(445,plain,
    equal(or__dfg(u,not__dfg(u)),truth),
    inference(spr,[status(thm),theory(equality)],[338,6]),
    [iquote('0:SpR:338.0,6.0')] ).

cnf(478,plain,
    equal(implies__dfg(implies__dfg(or__dfg(not__dfg(u),and__dfg(u,truth)),v),implies__dfg(implies__dfg(v,truth),truth)),truth),
    inference(spr,[status(thm),theory(equality)],[130,3]),
    [iquote('0:SpR:130.0,3.0')] ).

cnf(509,plain,
    equal(implies__dfg(implies__dfg(or__dfg(not__dfg(u),and__dfg(u,truth)),v),truth),truth),
    inference(rew,[status(thm),theory(equality)],[354,478]),
    [iquote('0:Rew:354.0,478.0')] ).

cnf(583,plain,
    equal(or__dfg(not__dfg(u),and__dfg(u,truth)),truth),
    inference(spr,[status(thm),theory(equality)],[337,445]),
    [iquote('0:SpR:337.0,445.0')] ).

cnf(599,plain,
    equal(implies__dfg(implies__dfg(truth,u),truth),truth),
    inference(rew,[status(thm),theory(equality)],[583,509]),
    [iquote('0:Rew:583.0,509.0')] ).

cnf(601,plain,
    equal(implies__dfg(u,truth),truth),
    inference(rew,[status(thm),theory(equality)],[2,599]),
    [iquote('0:Rew:2.0,599.0')] ).

cnf(625,plain,
    equal(or__dfg(u,truth),truth),
    inference(spr,[status(thm),theory(equality)],[601,6]),
    [iquote('0:SpR:601.0,6.0')] ).

cnf(632,plain,
    equal(implies__dfg(truth,or__dfg(truth,u)),truth),
    inference(rew,[status(thm),theory(equality)],[625,295]),
    [iquote('0:Rew:625.0,295.0')] ).

cnf(638,plain,
    equal(or__dfg(truth,u),truth),
    inference(rew,[status(thm),theory(equality)],[2,632]),
    [iquote('0:Rew:2.0,632.0')] ).

cnf(642,plain,
    equal(and__dfg(falsehood,u),not__dfg(truth)),
    inference(rew,[status(thm),theory(equality)],[638,327]),
    [iquote('0:Rew:638.0,327.0')] ).

cnf(643,plain,
    equal(implies__dfg(implies__dfg(u,falsehood),falsehood),implies__dfg(truth,u)),
    inference(rew,[status(thm),theory(equality)],[638,138]),
    [iquote('0:Rew:638.0,138.0')] ).

cnf(644,plain,
    equal(and__dfg(falsehood,u),falsehood),
    inference(rew,[status(thm),theory(equality)],[17,642]),
    [iquote('0:Rew:17.0,642.0')] ).

cnf(647,plain,
    equal(or__dfg(and__dfg(u,truth),falsehood),xor__dfg(u,falsehood)),
    inference(rew,[status(thm),theory(equality)],[644,413]),
    [iquote('0:Rew:644.0,413.0')] ).

cnf(652,plain,
    equal(implies__dfg(implies__dfg(u,falsehood),falsehood),u),
    inference(rew,[status(thm),theory(equality)],[2,643]),
    [iquote('0:Rew:2.0,643.0')] ).

cnf(663,plain,
    equal(and__dfg(u,truth),xor__dfg(u,falsehood)),
    inference(rew,[status(thm),theory(equality)],[423,647]),
    [iquote('0:Rew:423.0,647.0')] ).

cnf(664,plain,
    equal(not__dfg(not__dfg(u)),xor__dfg(u,falsehood)),
    inference(rew,[status(thm),theory(equality)],[663,337]),
    [iquote('0:Rew:663.0,337.0')] ).

cnf(716,plain,
    equal(and__dfg(u,falsehood),falsehood),
    inference(spr,[status(thm),theory(equality)],[644,11]),
    [iquote('0:SpR:644.0,11.0')] ).

cnf(764,plain,
    equal(implies__dfg(or__dfg(u,falsehood),falsehood),not__dfg(u)),
    inference(spr,[status(thm),theory(equality)],[6,652]),
    [iquote('0:SpR:6.0,652.0')] ).

cnf(769,plain,
    equal(implies__dfg(u,falsehood),not__dfg(u)),
    inference(rew,[status(thm),theory(equality)],[423,764]),
    [iquote('0:Rew:423.0,764.0')] ).

cnf(770,plain,
    equal(not__dfg(implies__dfg(u,falsehood)),u),
    inference(rew,[status(thm),theory(equality)],[769,652]),
    [iquote('0:Rew:769.0,652.0')] ).

cnf(775,plain,
    equal(xor__dfg(u,falsehood),u),
    inference(rew,[status(thm),theory(equality)],[664,770,769]),
    [iquote('0:Rew:664.0,770.0,769.0,770.0')] ).

cnf(778,plain,
    equal(and__dfg(u,truth),u),
    inference(rew,[status(thm),theory(equality)],[775,663]),
    [iquote('0:Rew:775.0,663.0')] ).

cnf(854,plain,
    equal(or__dfg(and__dfg(u,not__dfg(truth)),not__dfg(u)),xor__dfg(u,truth)),
    inference(spr,[status(thm),theory(equality)],[778,12]),
    [iquote('0:SpR:778.0,12.0')] ).

cnf(858,plain,
    equal(xor__dfg(u,truth),not__dfg(u)),
    inference(rew,[status(thm),theory(equality)],[334,854,716,17]),
    [iquote('0:Rew:334.0,854.0,716.0,854.0,17.0,854.0')] ).

cnf(859,plain,
    $false,
    inference(unc,[status(thm)],[858,1]),
    [iquote('0:UnC:858.0,1.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : LCL153-1 : TPTP v8.1.0. Released v1.0.0.
% 0.11/0.13  % Command  : run_spass %d %s
% 0.12/0.32  % Computer : n023.cluster.edu
% 0.12/0.32  % Model    : x86_64 x86_64
% 0.12/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.32  % Memory   : 8042.1875MB
% 0.12/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.32  % CPULimit : 300
% 0.12/0.32  % WCLimit  : 600
% 0.12/0.32  % DateTime : Sun Jul  3 21:37:28 EDT 2022
% 0.17/0.32  % CPUTime  : 
% 0.17/0.48  
% 0.17/0.48  SPASS V 3.9 
% 0.17/0.48  SPASS beiseite: Proof found.
% 0.17/0.48  % SZS status Theorem
% 0.17/0.48  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.17/0.48  SPASS derived 581 clauses, backtracked 0 clauses, performed 0 splits and kept 244 clauses.
% 0.17/0.48  SPASS allocated 63964 KBytes.
% 0.17/0.48  SPASS spent	0:00:00.14 on the problem.
% 0.17/0.48  		0:00:00.04 for the input.
% 0.17/0.48  		0:00:00.00 for the FLOTTER CNF translation.
% 0.17/0.48  		0:00:00.01 for inferences.
% 0.17/0.48  		0:00:00.00 for the backtracking.
% 0.17/0.48  		0:00:00.07 for the reduction.
% 0.17/0.48  
% 0.17/0.48  
% 0.17/0.48  Here is a proof with depth 6, length 66 :
% 0.17/0.48  % SZS output start Refutation
% See solution above
% 0.17/0.48  Formulae used in the proof : prove_alternative_wajsberg_axiom wajsberg_1 wajsberg_2 wajsberg_3 wajsberg_4 or_definition or_commutativity and_definition and_commutativity xor_definition and_star_definition false_definition
% 0.17/0.48  
%------------------------------------------------------------------------------