TSTP Solution File: LAT090-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : LAT090-1 : TPTP v8.1.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n029.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 06:48:59 EDT 2022

% Result   : Unsatisfiable 0.18s 0.46s
% Output   : Refutation 0.18s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    6
% Syntax   : Number of clauses     :   27 (  27 unt;   0 nHn;  27 RR)
%            Number of literals    :   27 (   0 equ;   1 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    equal(join(meet(u,v),meet(u,join(u,v))),u),
    file('LAT090-1.p',unknown),
    [] ).

cnf(2,axiom,
    equal(join(meet(u,u),meet(v,join(u,u))),u),
    file('LAT090-1.p',unknown),
    [] ).

cnf(3,axiom,
    equal(join(meet(u,v),meet(v,join(u,v))),v),
    file('LAT090-1.p',unknown),
    [] ).

cnf(4,axiom,
    equal(meet(meet(join(u,v),join(w,u)),u),u),
    file('LAT090-1.p',unknown),
    [] ).

cnf(5,axiom,
    equal(join(join(meet(u,v),meet(w,u)),u),u),
    file('LAT090-1.p',unknown),
    [] ).

cnf(6,axiom,
    ~ equal(join(a,a),a),
    file('LAT090-1.p',unknown),
    [] ).

cnf(22,plain,
    equal(join(meet(u,u),join(u,u)),u),
    inference(spr,[status(thm),theory(equality)],[4,2]),
    [iquote('0:SpR:4.0,2.0')] ).

cnf(31,plain,
    equal(meet(meet(join(u,v),u),u),u),
    inference(spr,[status(thm),theory(equality)],[5,4]),
    [iquote('0:SpR:5.0,4.0')] ).

cnf(37,plain,
    equal(join(meet(meet(u,u),join(u,u)),meet(meet(u,u),u)),meet(u,u)),
    inference(spr,[status(thm),theory(equality)],[22,1]),
    [iquote('0:SpR:22.0,1.0')] ).

cnf(48,plain,
    equal(join(u,meet(u,join(meet(join(u,v),u),u))),u),
    inference(spr,[status(thm),theory(equality)],[31,3]),
    [iquote('0:SpR:31.0,3.0')] ).

cnf(56,plain,
    equal(meet(meet(u,meet(u,v)),meet(u,v)),meet(u,v)),
    inference(spr,[status(thm),theory(equality)],[1,31]),
    [iquote('0:SpR:1.0,31.0')] ).

cnf(80,plain,
    equal(meet(meet(u,join(v,u)),u),u),
    inference(spr,[status(thm),theory(equality)],[48,4]),
    [iquote('0:SpR:48.0,4.0')] ).

cnf(81,plain,
    equal(meet(meet(u,u),u),u),
    inference(spr,[status(thm),theory(equality)],[48,31]),
    [iquote('0:SpR:48.0,31.0')] ).

cnf(82,plain,
    equal(join(u,meet(u,join(meet(u,u),u))),u),
    inference(spr,[status(thm),theory(equality)],[48]),
    [iquote('0:SpR:48.0,48.0')] ).

cnf(94,plain,
    equal(join(meet(meet(u,u),join(u,u)),u),meet(u,u)),
    inference(rew,[status(thm),theory(equality)],[81,37]),
    [iquote('0:Rew:81.0,37.0')] ).

cnf(121,plain,
    equal(meet(meet(meet(u,join(v,u)),u),meet(u,join(v,u))),meet(u,join(v,u))),
    inference(spr,[status(thm),theory(equality)],[3,80]),
    [iquote('0:SpR:3.0,80.0')] ).

cnf(130,plain,
    equal(meet(u,meet(u,join(v,u))),meet(u,join(v,u))),
    inference(rew,[status(thm),theory(equality)],[80,121]),
    [iquote('0:Rew:80.0,121.0')] ).

cnf(175,plain,
    equal(join(meet(u,meet(u,join(meet(u,u),u))),meet(meet(u,join(meet(u,u),u)),u)),meet(u,join(meet(u,u),u))),
    inference(spr,[status(thm),theory(equality)],[82,3]),
    [iquote('0:SpR:82.0,3.0')] ).

cnf(187,plain,
    equal(join(meet(u,meet(u,join(meet(u,u),u))),u),meet(u,join(meet(u,u),u))),
    inference(rew,[status(thm),theory(equality)],[80,175]),
    [iquote('0:Rew:80.0,175.0')] ).

cnf(188,plain,
    equal(join(meet(u,join(meet(u,u),u)),u),meet(u,join(meet(u,u),u))),
    inference(rew,[status(thm),theory(equality)],[130,187]),
    [iquote('0:Rew:130.0,187.0')] ).

cnf(283,plain,
    equal(meet(meet(meet(u,u),u),u),u),
    inference(spr,[status(thm),theory(equality)],[81,56]),
    [iquote('0:SpR:81.0,56.0')] ).

cnf(297,plain,
    equal(meet(u,u),u),
    inference(rew,[status(thm),theory(equality)],[81,283]),
    [iquote('0:Rew:81.0,283.0')] ).

cnf(320,plain,
    equal(join(meet(u,join(u,u)),u),meet(u,join(u,u))),
    inference(rew,[status(thm),theory(equality)],[297,188]),
    [iquote('0:Rew:297.0,188.0')] ).

cnf(321,plain,
    equal(join(meet(u,join(u,u)),u),u),
    inference(rew,[status(thm),theory(equality)],[297,94]),
    [iquote('0:Rew:297.0,94.0')] ).

cnf(351,plain,
    equal(meet(u,join(u,u)),u),
    inference(rew,[status(thm),theory(equality)],[321,320]),
    [iquote('0:Rew:321.0,320.0')] ).

cnf(352,plain,
    equal(join(u,u),u),
    inference(rew,[status(thm),theory(equality)],[351,321]),
    [iquote('0:Rew:351.0,321.0')] ).

cnf(353,plain,
    $false,
    inference(unc,[status(thm)],[352,6]),
    [iquote('0:UnC:352.0,6.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : LAT090-1 : TPTP v8.1.0. Released v2.6.0.
% 0.04/0.12  % Command  : run_spass %d %s
% 0.12/0.33  % Computer : n029.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
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Thu Jun 30 11:03:08 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.18/0.46  
% 0.18/0.46  SPASS V 3.9 
% 0.18/0.46  SPASS beiseite: Proof found.
% 0.18/0.46  % SZS status Theorem
% 0.18/0.46  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.18/0.46  SPASS derived 326 clauses, backtracked 0 clauses, performed 0 splits and kept 166 clauses.
% 0.18/0.46  SPASS allocated 63713 KBytes.
% 0.18/0.46  SPASS spent	0:00:00.11 on the problem.
% 0.18/0.46  		0:00:00.03 for the input.
% 0.18/0.46  		0:00:00.00 for the FLOTTER CNF translation.
% 0.18/0.46  		0:00:00.00 for inferences.
% 0.18/0.46  		0:00:00.00 for the backtracking.
% 0.18/0.46  		0:00:00.05 for the reduction.
% 0.18/0.46  
% 0.18/0.46  
% 0.18/0.46  Here is a proof with depth 4, length 27 :
% 0.18/0.46  % SZS output start Refutation
% See solution above
% 0.18/0.46  Formulae used in the proof : wal_absorbtion_1 wal_absorbtion_2 wal_absorbtion_3 wal_absorbtion_4 wal_absorbtion_5 prove_normal_axioms_3
% 0.18/0.46  
%------------------------------------------------------------------------------