%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SET093-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n028.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 : Tue Jul 19 05:23:55 EDT 2022

% Result   : Unsatisfiable 0.19s 0.43s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :    5
% Syntax   : Number of clauses     :    9 (   7 unt;   0 nHn;   9 RR)
%            Number of literals    :   12 (   0 equ;   6 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    :    7 (   7 usr;   5 con; 0-1 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(29,axiom,
    member(singleton(u),universal_class),
    file('SET093-7.p',unknown),
    [] ).

cnf(46,axiom,
    equal(singleton(member_of(x__dfg)),x__dfg),
    file('SET093-7.p',unknown),
    [] ).

cnf(47,axiom,
    ~ member(x__dfg,universal_class),
    file('SET093-7.p',unknown),
    [] ).

cnf(48,axiom,
    ( ~ member(u,v)
    | ~ subclass(v,w)
    | member(u,w) ),
    file('SET093-7.p',unknown),
    [] ).

cnf(51,axiom,
    subclass(u,universal_class),
    file('SET093-7.p',unknown),
    [] ).

cnf(155,plain,
    ( ~ subclass(u,universal_class)
    | ~ member(x__dfg,u) ),
    inference(res,[status(thm),theory(equality)],[48,47]),
    [iquote('0:Res:48.2,47.0')] ).

cnf(160,plain,
    ~ member(x__dfg,u),
    inference(mrr,[status(thm)],[155,51]),
    [iquote('0:MRR:155.0,51.0')] ).

cnf(163,plain,
    member(x__dfg,universal_class),
    inference(spr,[status(thm),theory(equality)],[46,29]),
    [iquote('0:SpR:46.0,29.0')] ).

cnf(165,plain,
    $false,
    inference(mrr,[status(thm)],[163,160]),
    [iquote('0:MRR:163.0,160.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SET093-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.03/0.13  % Command  : run_spass %d %s
% 0.13/0.33  % Computer : n028.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 600
% 0.13/0.33  % DateTime : Mon Jul 11 02:12:28 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.19/0.43  
% 0.19/0.43  SPASS V 3.9 
% 0.19/0.43  SPASS beiseite: Proof found.
% 0.19/0.43  % SZS status Theorem
% 0.19/0.43  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.19/0.43  SPASS derived 18 clauses, backtracked 0 clauses, performed 0 splits and kept 141 clauses.
% 0.19/0.43  SPASS allocated 75794 KBytes.
% 0.19/0.43  SPASS spent	0:00:00.08 on the problem.
% 0.19/0.43  		0:00:00.04 for the input.
% 0.19/0.43  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.43  		0:00:00.00 for inferences.
% 0.19/0.43  		0:00:00.00 for the backtracking.
% 0.19/0.43  		0:00:00.01 for the reduction.
% 0.19/0.43  
% 0.19/0.43  
% 0.19/0.43  Here is a proof with depth 1, length 9 :
% 0.19/0.43  % SZS output start Refutation
% See solution above
% 0.19/0.43  Formulae used in the proof : singletons_are_sets prove_corollary_2_to_singletons_are_sets_1 prove_corollary_2_to_singletons_are_sets_2 subclass_members class_elements_are_sets
% 0.19/0.43  
%------------------------------------------------------------------------------