%------------------------------------------------------------------------------
% File : ConnectPP---0.7.2
% Problem : FLD023-3 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : /export/starexec/sandbox2/solver/bin/connect++ --verbosity 1 --no-colour --tptp-proof --schedule default --timeout 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n019.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Sep 24 08:38:51 AM UTC 2026
% Result : Unsatisfiable 0.41s 0.89s
% Output : Proof 0.41s
% Verified :
% SZS Type : Refutation
% Derivation depth : 4
% Number of leaves : 9
% Syntax : Number of clauses : 33 ( 23 unt; 2 nHn; 33 RR)
% Number of literals : 53 ( 0 equ; 20 neg)
% Maximal clause size : 4 ( 1 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-3 aty)
% Number of functors : 4 ( 4 usr; 3 con; 0-1 aty)
% Number of variables : 14 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(associativity_addition_2,axiom,
( ~ sum(X,V,W)
| ~ sum(Y,Z,V)
| ~ sum(X,Y,U)
| sum(U,Z,W) ),
file('FLD002-0.ax',associativity_addition_2) ).
cnf(existence_of_inverse_addition,axiom,
( ~ defined(X)
| sum(additive_inverse(X),X,additive_identity) ),
file('FLD002-0.ax',existence_of_inverse_addition) ).
cnf(commutativity_addition,axiom,
( ~ sum(X,Y,Z)
| sum(Y,X,Z) ),
file('FLD002-0.ax',commutativity_addition) ).
cnf(well_definedness_of_additive_identity,axiom,
defined(additive_identity),
file('FLD002-0.ax',well_definedness_of_additive_identity) ).
cnf(antisymmetry_of_order_relation,axiom,
( ~ less_or_equal(Y,X)
| ~ less_or_equal(X,Y)
| sum(additive_identity,X,Y) ),
file('FLD002-0.ax',antisymmetry_of_order_relation) ).
cnf(totality_of_order_relation,axiom,
( ~ defined(Y)
| ~ defined(X)
| less_or_equal(Y,X)
| less_or_equal(X,Y) ),
file('FLD002-0.ax',totality_of_order_relation) ).
cnf(a_is_defined,hypothesis,
defined(a),
file('theBenchmark.p',a_is_defined) ).
cnf(sum_3,negated_conjecture,
sum(additive_identity,a,b),
file('theBenchmark.p',sum_3) ).
cnf(not_sum_4,negated_conjecture,
~ sum(b,additive_inverse(a),additive_identity),
file('theBenchmark.p',not_sum_4) ).
cnf(t1,plain,
~ sum(b,additive_inverse(a),additive_identity),
inference(start,[status(thm),parent(0:0)],[not_sum_4]) ).
cnf(t2,plain,
( ~ sum(additive_identity,a,b)
| ~ sum(a,additive_inverse(a),additive_identity)
| ~ sum(additive_identity,additive_identity,additive_identity)
| sum(b,additive_inverse(a),additive_identity) ),
inference(extension,[status(thm),parent(t1:1)],[associativity_addition_2]) ).
cnf(t3,plain,
$false,
inference(connection,[status(thm),parent(t2:1)],[t2:1,t1:1]) ).
cnf(t4,plain,
( ~ less_or_equal(additive_identity,additive_identity)
| ~ less_or_equal(additive_identity,additive_identity)
| sum(additive_identity,additive_identity,additive_identity) ),
inference(extension,[status(thm),parent(t2:2)],[antisymmetry_of_order_relation]) ).
cnf(t5,plain,
$false,
inference(connection,[status(thm),parent(t4:1)],[t4:1,t2:2]) ).
cnf(t6,plain,
( ~ defined(additive_identity)
| ~ defined(additive_identity)
| less_or_equal(additive_identity,additive_identity)
| less_or_equal(additive_identity,additive_identity) ),
inference(extension,[status(thm),parent(t4:2)],[totality_of_order_relation]) ).
cnf(t7,plain,
$false,
inference(connection,[status(thm),parent(t6:1)],[t6:1,t4:2]) ).
cnf(t8,plain,
$false,
inference(reduction,[status(thm),parent(t6:2)],[t6:2,t4:2]) ).
cnf(t9,plain,
defined(additive_identity),
inference(extension,[status(thm),parent(t6:3)],[well_definedness_of_additive_identity]) ).
cnf(t10,plain,
$false,
inference(connection,[status(thm),parent(t9:1)],[t9:1,t6:3]) ).
cnf(l5,lemma,
defined(additive_identity),
inference(lemma,[status(cth),parent(t6:3),below(t4:2)],[t6:3]) ).
cnf(t11,plain,
defined(additive_identity),
inference(lemma_extension,[status(thm),parent(t6:4)],[l5:1]) ).
cnf(t12,plain,
$false,
inference(connection,[status(thm),parent(t11:1)],[t11:1,t6:4]) ).
cnf(l3,lemma,
less_or_equal(additive_identity,additive_identity),
inference(lemma,[status(cth),parent(t4:2),below(t2:2)],[t4:2]) ).
cnf(t13,plain,
less_or_equal(additive_identity,additive_identity),
inference(lemma_extension,[status(thm),parent(t4:3)],[l3:1]) ).
cnf(t14,plain,
$false,
inference(connection,[status(thm),parent(t13:1)],[t13:1,t4:3]) ).
cnf(t15,plain,
( ~ sum(additive_inverse(a),a,additive_identity)
| sum(a,additive_inverse(a),additive_identity) ),
inference(extension,[status(thm),parent(t2:3)],[commutativity_addition]) ).
cnf(t16,plain,
$false,
inference(connection,[status(thm),parent(t15:1)],[t15:1,t2:3]) ).
cnf(t17,plain,
( ~ defined(a)
| sum(additive_inverse(a),a,additive_identity) ),
inference(extension,[status(thm),parent(t15:2)],[existence_of_inverse_addition]) ).
cnf(t18,plain,
$false,
inference(connection,[status(thm),parent(t17:1)],[t17:1,t15:2]) ).
cnf(t19,plain,
defined(a),
inference(extension,[status(thm),parent(t17:2)],[a_is_defined]) ).
cnf(t20,plain,
$false,
inference(connection,[status(thm),parent(t19:1)],[t19:1,t17:2]) ).
cnf(t21,plain,
sum(additive_identity,a,b),
inference(extension,[status(thm),parent(t2:4)],[sum_3]) ).
cnf(t22,plain,
$false,
inference(connection,[status(thm),parent(t21:1)],[t21:1,t2:4]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : FLD023-3 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.03 This is a CNF_UNS_RFO_NEQ_NHN problem
% 0.00/0.04 % Command : /export/starexec/sandbox2/solver/bin/connect++ --verbosity 1 --no-colour --tptp-proof --schedule default --timeout 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.11/0.53 % Computer : n019.cluster.edu
% 0.11/0.53 % Model : x86_64 x86_64
% 0.11/0.53 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.53 % Memory : 8046.5625MB
% 0.11/0.53 % OS : Linux 6.8.0-71-generic
% 0.11/0.53 % CPULimit : 300
% 0.11/0.53 % WCLimit : 300
% 0.11/0.53 % DateTime : Sun Sep 20 18:50:21 UTC 2026
% 0.11/0.53 % CPUTime :
% 0.41/0.89 % SZS status Unsatisfiable for theBenchmark
% 0.41/0.89 % SZS output start Proof for theBenchmark
% See solution above
%------------------------------------------------------------------------------