%------------------------------------------------------------------------------
% File : Toma---0.7
% Problem : LCL163-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_Leo-III %s %d THM
% Computer : n018.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 : Mon Sep 7 01:14:10 PM UTC 2026
% Result : Unsatisfiable 15.41s 15.83s
% Output : CNFRefutation 15.41s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 8
% Syntax : Number of clauses : 17 ( 17 unt; 0 nHn; 3 RR)
% Number of literals : 17 ( 16 equ; 1 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 5 ( 2 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 7 ( 7 usr; 4 con; 0-2 aty)
% Number of variables : 24 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(g0,negated_conjecture,
implies(implies(x,y),y) != implies(implies(y,x),x),
file('theBenchmark.p',prove_wajsberg_axiom) ).
cnf(c2,axiom,
xor(X,X) = falsehood,
file('LCL002-0.ax',axiom_3) ).
cnf(c4,axiom,
xor(X,falsehood) = X,
file('LCL002-0.ax',axiom_2) ).
cnf(c7,axiom,
xor(X,Y) = xor(Y,X),
file('theBenchmark.p',xor_commutativity) ).
cnf(c8,axiom,
and_star(X,Y) = and_star(Y,X),
file('theBenchmark.p',and_star_commutativity) ).
cnf(c10,plain,
xor(falsehood,X) = X,
inference(equational,[status(thm)],[c4,c7]) ).
cnf(c16,axiom,
xor(X,xor(truth,Y)) = xor(xor(X,truth),Y),
file('LCL002-0.ax',axiom_7) ).
cnf(c17,plain,
xor(xor(X,truth),Y) = xor(X,xor(truth,Y)),
inference(equational,[status(thm)],[c16]) ).
cnf(c18,plain,
xor(truth,xor(truth,X)) = X,
inference(equational,[status(thm)],[c2,c10,c17]) ).
cnf(c21,plain,
xor(X,xor(truth,Y)) = xor(Y,xor(X,truth)),
inference(equational,[status(thm)],[c7,c17]) ).
cnf(c25,axiom,
implies(X,Y) = xor(truth,and_star(X,xor(truth,Y))),
file('theBenchmark.p',implies_definition) ).
cnf(c40,axiom,
and_star(xor(and_star(xor(truth,X),Y),truth),Y) = and_star(xor(and_star(xor(truth,Y),X),truth),X),
file('LCL002-0.ax',axiom_8) ).
cnf(c41,plain,
and_star(X,xor(truth,and_star(xor(truth,Y),X))) = and_star(Y,xor(truth,and_star(xor(truth,X),Y))),
inference(equational,[status(thm)],[c7,c8,c40]) ).
cnf(c45,plain,
and_star(X,xor(truth,and_star(xor(truth,Y),X))) = and_star(Y,xor(truth,and_star(Y,xor(truth,X)))),
inference(equational,[status(thm)],[c8,c41]) ).
cnf(c139,plain,
and_star(X,xor(truth,and_star(Y,X))) = and_star(xor(truth,Y),xor(truth,and_star(xor(truth,Y),xor(truth,X)))),
inference(equational,[status(thm)],[c2,c4,c21,c45]) ).
cnf(g1,plain,
implies(implies(x,y),y) = implies(implies(y,x),x),
inference(equational,[status(thm)],[c8,c18,c25,c139]) ).
cnf(g2,plain,
$false,
inference(resolution,[status(thm)],[g0,g1]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LCL163-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.03 % Command : run_Leo-III %s %d THM
% 0.06/0.34 % Computer : n018.cluster.edu
% 0.06/0.34 % Model : x86_64 x86_64
% 0.06/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.06/0.34 % Memory : 8046.5625MB
% 0.06/0.34 % OS : Linux 6.8.0-71-generic
% 0.06/0.34 % CPULimit : 300
% 0.06/0.34 % WCLimit : 300
% 0.06/0.34 % DateTime : Fri Sep 4 17:31:32 UTC 2026
% 0.06/0.34 % CPUTime :
% 15.41/15.83 % SZS status Unsatisfiable
% 15.41/15.83 % SZS output start CNFRefutation
% See solution above
%------------------------------------------------------------------------------