TSTP Solution File: NUM183-1 by SPASS---3.9
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%------------------------------------------------------------------------------
% File : SPASS---3.9
% Problem : NUM183-1 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp
% Command : run_spass %d %s
% Computer : n016.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 : Mon Jul 18 14:24:32 EDT 2022
% Result : Unsatisfiable 0.17s 0.46s
% Output : Refutation 0.17s
% Verified :
% SZS Type : Refutation
% Derivation depth : 4
% Number of leaves : 8
% Syntax : Number of clauses : 15 ( 8 unt; 1 nHn; 15 RR)
% Number of literals : 25 ( 0 equ; 11 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-2 aty)
% Number of functors : 10 ( 10 usr; 8 con; 0-2 aty)
% Number of variables : 0 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(1,axiom,
member(x__dfg,ordinal_numbers),
file('NUM183-1.p',unknown),
[] ).
cnf(2,axiom,
~ member(x__dfg,kind_1_ordinals),
file('NUM183-1.p',unknown),
[] ).
cnf(3,axiom,
~ member(x__dfg,limit_ordinals),
file('NUM183-1.p',unknown),
[] ).
cnf(4,axiom,
( ~ member(u,v)
| ~ subclass(v,w)
| member(u,w) ),
file('NUM183-1.p',unknown),
[] ).
cnf(7,axiom,
subclass(u,universal_class),
file('NUM183-1.p',unknown),
[] ).
cnf(26,axiom,
( ~ member(u,v)
| ~ member(u,w)
| member(u,intersection(w,v)) ),
file('NUM183-1.p',unknown),
[] ).
cnf(28,axiom,
( ~ member(u,universal_class)
| member(u,v)
| member(u,complement(v)) ),
file('NUM183-1.p',unknown),
[] ).
cnf(142,axiom,
equal(intersection(complement(kind_1_ordinals),ordinal_numbers),limit_ordinals),
file('NUM183-1.p',unknown),
[] ).
cnf(164,plain,
( ~ subclass(ordinal_numbers,u)
| member(x__dfg,u) ),
inference(res,[status(thm),theory(equality)],[1,4]),
[iquote('0:Res:1.0,4.1')] ).
cnf(171,plain,
( ~ member(x__dfg,u)
| member(x__dfg,intersection(u,ordinal_numbers)) ),
inference(res,[status(thm),theory(equality)],[1,26]),
[iquote('0:Res:1.0,26.1')] ).
cnf(182,plain,
( ~ member(x__dfg,universal_class)
| member(x__dfg,complement(kind_1_ordinals)) ),
inference(res,[status(thm),theory(equality)],[28,2]),
[iquote('0:Res:28.2,2.0')] ).
cnf(202,plain,
member(x__dfg,universal_class),
inference(res,[status(thm),theory(equality)],[7,164]),
[iquote('0:Res:7.0,164.0')] ).
cnf(203,plain,
member(x__dfg,complement(kind_1_ordinals)),
inference(mrr,[status(thm)],[182,202]),
[iquote('0:MRR:182.0,202.0')] ).
cnf(424,plain,
( ~ member(x__dfg,complement(kind_1_ordinals))
| member(x__dfg,limit_ordinals) ),
inference(spr,[status(thm),theory(equality)],[142,171]),
[iquote('0:SpR:142.0,171.1')] ).
cnf(429,plain,
$false,
inference(mrr,[status(thm)],[424,203,3]),
[iquote('0:MRR:424.0,424.1,203.0,3.0')] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11 % Problem : NUM183-1 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.06/0.11 % Command : run_spass %d %s
% 0.11/0.32 % Computer : n016.cluster.edu
% 0.11/0.32 % Model : x86_64 x86_64
% 0.11/0.32 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.32 % Memory : 8042.1875MB
% 0.11/0.32 % OS : Linux 3.10.0-693.el7.x86_64
% 0.11/0.32 % CPULimit : 300
% 0.11/0.32 % WCLimit : 600
% 0.11/0.32 % DateTime : Tue Jul 5 06:53:03 EDT 2022
% 0.11/0.32 % CPUTime :
% 0.17/0.46
% 0.17/0.46 SPASS V 3.9
% 0.17/0.46 SPASS beiseite: Proof found.
% 0.17/0.46 % SZS status Theorem
% 0.17/0.46 Problem: /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.17/0.46 SPASS derived 251 clauses, backtracked 0 clauses, performed 2 splits and kept 313 clauses.
% 0.17/0.46 SPASS allocated 76054 KBytes.
% 0.17/0.46 SPASS spent 0:00:00.13 on the problem.
% 0.17/0.46 0:00:00.04 for the input.
% 0.17/0.46 0:00:00.00 for the FLOTTER CNF translation.
% 0.17/0.46 0:00:00.01 for inferences.
% 0.17/0.46 0:00:00.00 for the backtracking.
% 0.17/0.46 0:00:00.04 for the reduction.
% 0.17/0.46
% 0.17/0.46
% 0.17/0.46 Here is a proof with depth 2, length 15 :
% 0.17/0.46 % SZS output start Refutation
% See solution above
% 0.17/0.46 Formulae used in the proof : prove_ordinals_are_kind_1_or_limit_1 prove_ordinals_are_kind_1_or_limit_2 prove_ordinals_are_kind_1_or_limit_3 subclass_members class_elements_are_sets intersection3 complement2 limit_ordinals
% 0.17/0.46
%------------------------------------------------------------------------------