TSTP Solution File: GRP152-1 by SPASS---3.9
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- Process Solution
%------------------------------------------------------------------------------
% File : SPASS---3.9
% Problem : GRP152-1 : TPTP v8.1.0. Bugfixed v1.2.1.
% Transfm : none
% Format : tptp
% Command : run_spass %d %s
% Computer : n026.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 11:45:57 EDT 2022
% Result : Unsatisfiable 0.20s 0.42s
% Output : Refutation 0.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 4
% Number of leaves : 5
% Syntax : Number of clauses : 10 ( 10 unt; 0 nHn; 10 RR)
% Number of literals : 10 ( 0 equ; 2 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 3 ( 1 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(least_upper_bound(b,least_upper_bound(a,b)),least_upper_bound(a,b)),
file('GRP152-1.p',unknown),
[] ).
cnf(5,axiom,
equal(greatest_lower_bound(u,v),greatest_lower_bound(v,u)),
file('GRP152-1.p',unknown),
[] ).
cnf(6,axiom,
equal(least_upper_bound(u,v),least_upper_bound(v,u)),
file('GRP152-1.p',unknown),
[] ).
cnf(11,axiom,
equal(least_upper_bound(u,greatest_lower_bound(u,v)),u),
file('GRP152-1.p',unknown),
[] ).
cnf(12,axiom,
equal(greatest_lower_bound(u,least_upper_bound(u,v)),u),
file('GRP152-1.p',unknown),
[] ).
cnf(17,plain,
~ equal(least_upper_bound(b,least_upper_bound(b,a)),least_upper_bound(b,a)),
inference(rew,[status(thm),theory(equality)],[6,1]),
[iquote('0:Rew:6.0,1.0')] ).
cnf(37,plain,
equal(least_upper_bound(u,greatest_lower_bound(v,u)),u),
inference(spr,[status(thm),theory(equality)],[5,11]),
[iquote('0:SpR:5.0,11.0')] ).
cnf(57,plain,
equal(least_upper_bound(least_upper_bound(u,v),u),least_upper_bound(u,v)),
inference(spr,[status(thm),theory(equality)],[12,37]),
[iquote('0:SpR:12.0,37.0')] ).
cnf(62,plain,
equal(least_upper_bound(u,least_upper_bound(u,v)),least_upper_bound(u,v)),
inference(rew,[status(thm),theory(equality)],[6,57]),
[iquote('0:Rew:6.0,57.0')] ).
cnf(63,plain,
$false,
inference(unc,[status(thm)],[62,17]),
[iquote('0:UnC:62.0,17.0')] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13 % Problem : GRP152-1 : TPTP v8.1.0. Bugfixed v1.2.1.
% 0.04/0.14 % Command : run_spass %d %s
% 0.14/0.35 % Computer : n026.cluster.edu
% 0.14/0.35 % Model : x86_64 x86_64
% 0.14/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35 % Memory : 8042.1875MB
% 0.14/0.35 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35 % CPULimit : 300
% 0.14/0.35 % WCLimit : 600
% 0.14/0.35 % DateTime : Mon Jun 13 10:21:20 EDT 2022
% 0.14/0.35 % CPUTime :
% 0.20/0.42
% 0.20/0.42 SPASS V 3.9
% 0.20/0.42 SPASS beiseite: Proof found.
% 0.20/0.42 % SZS status Theorem
% 0.20/0.42 Problem: /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.42 SPASS derived 42 clauses, backtracked 0 clauses, performed 0 splits and kept 22 clauses.
% 0.20/0.42 SPASS allocated 63132 KBytes.
% 0.20/0.42 SPASS spent 0:00:00.06 on the problem.
% 0.20/0.42 0:00:00.04 for the input.
% 0.20/0.42 0:00:00.00 for the FLOTTER CNF translation.
% 0.20/0.42 0:00:00.00 for inferences.
% 0.20/0.42 0:00:00.00 for the backtracking.
% 0.20/0.42 0:00:00.00 for the reduction.
% 0.20/0.42
% 0.20/0.42
% 0.20/0.42 Here is a proof with depth 2, length 10 :
% 0.20/0.42 % SZS output start Refutation
% See solution above
% 0.20/0.42 Formulae used in the proof : prove_ax_lub3a symmetry_of_glb symmetry_of_lub lub_absorbtion glb_absorbtion
% 0.20/0.42
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