TSTP Solution File: FLD009-3 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : FLD009-3 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n029.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 02:28:15 EDT 2022

% Result   : Unsatisfiable 3.15s 3.36s
% Output   : Refutation 3.15s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :   10
% Syntax   : Number of clauses     :   21 (   7 unt;   3 nHn;  21 RR)
%            Number of literals    :   48 (   0 equ;  31 neg)
%            Maximal clause size   :    4 (   2 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-3 aty)
%            Number of functors    :   12 (  12 usr;  10 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    defined(a),
    file('FLD009-3.p',unknown),
    [] ).

cnf(2,axiom,
    defined(b),
    file('FLD009-3.p',unknown),
    [] ).

cnf(3,axiom,
    ~ sum__dfg(additive_identity,a,additive_identity),
    file('FLD009-3.p',unknown),
    [] ).

cnf(4,axiom,
    ~ product(a,u,b),
    file('FLD009-3.p',unknown),
    [] ).

cnf(10,axiom,
    ( ~ product(u,v,w)
    | ~ product(x,v,y)
    | ~ product(z,x,u)
    | product(z,y,w) ),
    file('FLD009-3.p',unknown),
    [] ).

cnf(12,axiom,
    ( ~ defined(u)
    | product(multiplicative_identity,u,u) ),
    file('FLD009-3.p',unknown),
    [] ).

cnf(13,axiom,
    ( ~ defined(u)
    | sum__dfg(additive_identity,u,additive_identity)
    | product(multiplicative_inverse(u),u,multiplicative_identity) ),
    file('FLD009-3.p',unknown),
    [] ).

cnf(14,axiom,
    ( ~ product(u,v,w)
    | product(v,u,w) ),
    file('FLD009-3.p',unknown),
    [] ).

cnf(22,axiom,
    ( ~ defined(u)
    | defined(multiplicative_inverse(u))
    | sum__dfg(additive_identity,u,additive_identity) ),
    file('FLD009-3.p',unknown),
    [] ).

cnf(24,axiom,
    ( ~ defined(u)
    | ~ defined(v)
    | product(v,u,multiply(v,u)) ),
    file('FLD009-3.p',unknown),
    [] ).

cnf(32,plain,
    ( ~ product(u,v,w)
    | ~ product(x,v,b)
    | ~ product(a,u,x) ),
    inference(res,[status(thm),theory(equality)],[10,4]),
    [iquote('0:Res:10.3,4.0')] ).

cnf(36,plain,
    ( ~ defined(a)
    | defined(multiplicative_inverse(a)) ),
    inference(res,[status(thm),theory(equality)],[22,3]),
    [iquote('0:Res:22.2,3.0')] ).

cnf(42,plain,
    defined(multiplicative_inverse(a)),
    inference(mrr,[status(thm)],[36,1]),
    [iquote('0:MRR:36.0,1.0')] ).

cnf(65,plain,
    ( ~ defined(u)
    | sum__dfg(additive_identity,u,additive_identity)
    | product(u,multiplicative_inverse(u),multiplicative_identity) ),
    inference(res,[status(thm),theory(equality)],[13,14]),
    [iquote('0:Res:13.2,14.0')] ).

cnf(356,plain,
    ( ~ defined(u)
    | ~ defined(v)
    | ~ product(w,u,b)
    | ~ product(a,v,w) ),
    inference(res,[status(thm),theory(equality)],[24,32]),
    [iquote('0:Res:24.2,32.0')] ).

cnf(7273,plain,
    ( ~ defined(b)
    | ~ defined(b)
    | ~ defined(u)
    | ~ product(a,u,multiplicative_identity) ),
    inference(res,[status(thm),theory(equality)],[12,356]),
    [iquote('0:Res:12.1,356.2')] ).

cnf(7281,plain,
    ( ~ defined(b)
    | ~ defined(u)
    | ~ product(a,u,multiplicative_identity) ),
    inference(obv,[status(thm),theory(equality)],[7273]),
    [iquote('0:Obv:7273.0')] ).

cnf(7282,plain,
    ( ~ defined(u)
    | ~ product(a,u,multiplicative_identity) ),
    inference(ssi,[status(thm)],[7281,2]),
    [iquote('0:SSi:7281.0,2.0')] ).

cnf(7286,plain,
    ( ~ defined(a)
    | ~ defined(multiplicative_inverse(a))
    | sum__dfg(additive_identity,a,additive_identity) ),
    inference(res,[status(thm),theory(equality)],[65,7282]),
    [iquote('0:Res:65.2,7282.1')] ).

cnf(7304,plain,
    sum__dfg(additive_identity,a,additive_identity),
    inference(ssi,[status(thm)],[7286,42,1]),
    [iquote('0:SSi:7286.1,7286.0,42.0,1.0')] ).

cnf(7305,plain,
    $false,
    inference(mrr,[status(thm)],[7304,3]),
    [iquote('0:MRR:7304.0,3.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : FLD009-3 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.06/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n029.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Tue Jun  7 00:03:50 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 3.15/3.36  
% 3.15/3.36  SPASS V 3.9 
% 3.15/3.36  SPASS beiseite: Proof found.
% 3.15/3.36  % SZS status Theorem
% 3.15/3.36  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 3.15/3.36  SPASS derived 5324 clauses, backtracked 50 clauses, performed 1 splits and kept 3404 clauses.
% 3.15/3.36  SPASS allocated 81418 KBytes.
% 3.15/3.36  SPASS spent	0:00:02.95 on the problem.
% 3.15/3.36  		0:00:00.04 for the input.
% 3.15/3.36  		0:00:00.00 for the FLOTTER CNF translation.
% 3.15/3.36  		0:00:00.06 for inferences.
% 3.15/3.36  		0:00:00.06 for the backtracking.
% 3.15/3.36  		0:00:02.75 for the reduction.
% 3.15/3.36  
% 3.15/3.36  
% 3.15/3.36  Here is a proof with depth 4, length 21 :
% 3.15/3.36  % SZS output start Refutation
% See solution above
% 3.15/3.36  Formulae used in the proof : a_is_defined b_is_defined not_sum_3 not_product_4 associativity_multiplication_1 existence_of_identity_multiplication existence_of_inverse_multiplication commutativity_multiplication well_definedness_of_multiplicative_inverse totality_of_multiplication
% 3.15/3.36  
%------------------------------------------------------------------------------