TSTP Solution File: GEO056-3 by SPASS---3.9
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%------------------------------------------------------------------------------
% File : SPASS---3.9
% Problem : GEO056-3 : TPTP v8.1.0. Released v1.0.0.
% Transfm : none
% Format : tptp
% Command : run_spass %d %s
% Computer : n022.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 06:21:57 EDT 2022
% Result : Unsatisfiable 0.18s 0.40s
% Output : Refutation 0.18s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 4
% Syntax : Number of clauses : 7 ( 6 unt; 0 nHn; 7 RR)
% Number of literals : 8 ( 0 equ; 4 neg)
% Maximal clause size : 2 ( 1 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-4 aty)
% Number of functors : 6 ( 6 usr; 5 con; 0-2 aty)
% Number of variables : 0 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(13,axiom,
equidistant(u,reflection(v,u),v,u),
file('GEO056-3.p',unknown),
[] ).
cnf(14,axiom,
equal(v__dfg,u__dfg),
file('GEO056-3.p',unknown),
[] ).
cnf(15,axiom,
~ equal(reflection(u__dfg,v__dfg),v__dfg),
file('GEO056-3.p',unknown),
[] ).
cnf(18,axiom,
( ~ equidistant(u,v,w,w)
| equal(u,v) ),
file('GEO056-3.p',unknown),
[] ).
cnf(35,plain,
~ equal(reflection(u__dfg,u__dfg),u__dfg),
inference(rew,[status(thm),theory(equality)],[14,15]),
[iquote('0:Rew:14.0,15.0')] ).
cnf(47,plain,
~ equidistant(u__dfg,reflection(u__dfg,u__dfg),u,u),
inference(res,[status(thm),theory(equality)],[18,35]),
[iquote('0:Res:18.1,35.0')] ).
cnf(50,plain,
$false,
inference(unc,[status(thm)],[47,13]),
[iquote('0:UnC:47.0,13.0')] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11 % Problem : GEO056-3 : TPTP v8.1.0. Released v1.0.0.
% 0.06/0.12 % Command : run_spass %d %s
% 0.12/0.33 % Computer : n022.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 : Sat Jun 18 10:18:32 EDT 2022
% 0.12/0.33 % CPUTime :
% 0.18/0.40
% 0.18/0.40 SPASS V 3.9
% 0.18/0.40 SPASS beiseite: Proof found.
% 0.18/0.40 % SZS status Theorem
% 0.18/0.40 Problem: /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.18/0.40 SPASS derived 8 clauses, backtracked 0 clauses, performed 0 splits and kept 37 clauses.
% 0.18/0.40 SPASS allocated 63141 KBytes.
% 0.18/0.40 SPASS spent 0:00:00.06 on the problem.
% 0.18/0.40 0:00:00.04 for the input.
% 0.18/0.40 0:00:00.00 for the FLOTTER CNF translation.
% 0.18/0.40 0:00:00.00 for inferences.
% 0.18/0.40 0:00:00.00 for the backtracking.
% 0.18/0.40 0:00:00.00 for the reduction.
% 0.18/0.40
% 0.18/0.40
% 0.18/0.40 Here is a proof with depth 1, length 7 :
% 0.18/0.40 % SZS output start Refutation
% See solution above
% 0.18/0.40 Formulae used in the proof : r2_2 u_equals_v prove_v_equals_reflection identity_for_equidistance
% 0.18/0.40
%------------------------------------------------------------------------------