TSTP Solution File: SET162+3 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SET162+3 : TPTP v8.1.0. Released v2.2.0.
% 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 : Tue Jul 19 05:24:39 EDT 2022

% Result   : Theorem 0.21s 0.53s
% Output   : Refutation 0.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    5
%            Number of leaves      :    8
% Syntax   : Number of clauses     :   19 (   8 unt;   6 nHn;  19 RR)
%            Number of literals    :   33 (   0 equ;  12 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    :    8 (   8 usr;   6 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(2,axiom,
    ~ member(u,empty_set),
    file('SET162+3.p',unknown),
    [] ).

cnf(3,axiom,
    ~ equal(union(skc1,empty_set),skc1),
    file('SET162+3.p',unknown),
    [] ).

cnf(7,axiom,
    equal(union(u,v),union(v,u)),
    file('SET162+3.p',unknown),
    [] ).

cnf(9,axiom,
    ( subset(u,v)
    | member(skf3(v,u),u) ),
    file('SET162+3.p',unknown),
    [] ).

cnf(11,axiom,
    ( ~ member(u,v)
    | member(u,union(w,v)) ),
    file('SET162+3.p',unknown),
    [] ).

cnf(12,axiom,
    ( ~ member(skf3(u,v),u)
    | subset(w,u) ),
    file('SET162+3.p',unknown),
    [] ).

cnf(13,axiom,
    ( ~ subset(u,v)
    | ~ subset(v,u)
    | equal(v,u) ),
    file('SET162+3.p',unknown),
    [] ).

cnf(17,axiom,
    ( ~ member(u,union(v,w))
    | member(u,v)
    | member(u,w) ),
    file('SET162+3.p',unknown),
    [] ).

cnf(20,plain,
    ~ equal(union(empty_set,skc1),skc1),
    inference(rew,[status(thm),theory(equality)],[7,3]),
    [iquote('0:Rew:7.0,3.0')] ).

cnf(21,plain,
    ( ~ subset(skc1,union(empty_set,skc1))
    | ~ subset(union(empty_set,skc1),skc1) ),
    inference(res,[status(thm),theory(equality)],[13,20]),
    [iquote('0:Res:13.2,20.0')] ).

cnf(41,plain,
    ( ~ member(skf3(union(u,v),w),v)
    | subset(x,union(u,v)) ),
    inference(res,[status(thm),theory(equality)],[11,12]),
    [iquote('0:Res:11.1,12.0')] ).

cnf(92,plain,
    ( subset(union(u,v),w)
    | member(skf3(w,union(u,v)),u)
    | member(skf3(w,union(u,v)),v) ),
    inference(res,[status(thm),theory(equality)],[9,17]),
    [iquote('0:Res:9.1,17.0')] ).

cnf(180,plain,
    ( subset(u,union(v,u))
    | subset(w,union(v,u)) ),
    inference(res,[status(thm),theory(equality)],[9,41]),
    [iquote('0:Res:9.1,41.0')] ).

cnf(182,plain,
    subset(u,union(v,u)),
    inference(con,[status(thm)],[180]),
    [iquote('0:Con:180.1')] ).

cnf(183,plain,
    ~ subset(union(empty_set,skc1),skc1),
    inference(mrr,[status(thm)],[21,182]),
    [iquote('0:MRR:21.0,182.0')] ).

cnf(497,plain,
    ( subset(union(empty_set,u),v)
    | member(skf3(v,union(empty_set,u)),u) ),
    inference(res,[status(thm),theory(equality)],[92,2]),
    [iquote('0:Res:92.1,2.0')] ).

cnf(947,plain,
    ( subset(union(empty_set,u),u)
    | subset(v,u) ),
    inference(res,[status(thm),theory(equality)],[497,12]),
    [iquote('0:Res:497.1,12.0')] ).

cnf(952,plain,
    subset(union(empty_set,u),u),
    inference(con,[status(thm)],[947]),
    [iquote('0:Con:947.1')] ).

cnf(953,plain,
    $false,
    inference(unc,[status(thm)],[952,183]),
    [iquote('0:UnC:952.0,183.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : SET162+3 : TPTP v8.1.0. Released v2.2.0.
% 0.07/0.14  % Command  : run_spass %d %s
% 0.13/0.35  % Computer : n016.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Mon Jul 11 03:07:27 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.21/0.53  
% 0.21/0.53  SPASS V 3.9 
% 0.21/0.53  SPASS beiseite: Proof found.
% 0.21/0.53  % SZS status Theorem
% 0.21/0.53  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.21/0.53  SPASS derived 771 clauses, backtracked 0 clauses, performed 0 splits and kept 295 clauses.
% 0.21/0.53  SPASS allocated 98274 KBytes.
% 0.21/0.53  SPASS spent	0:00:00.16 on the problem.
% 0.21/0.53  		0:00:00.03 for the input.
% 0.21/0.53  		0:00:00.03 for the FLOTTER CNF translation.
% 0.21/0.53  		0:00:00.01 for inferences.
% 0.21/0.53  		0:00:00.00 for the backtracking.
% 0.21/0.53  		0:00:00.06 for the reduction.
% 0.21/0.53  
% 0.21/0.53  
% 0.21/0.53  Here is a proof with depth 3, length 19 :
% 0.21/0.53  % SZS output start Refutation
% See solution above
% 0.21/0.53  Formulae used in the proof : empty_set_defn prove_union_empty_set commutativity_of_union subset_defn union_defn equal_defn
% 0.21/0.53  
%------------------------------------------------------------------------------