%-------------------------------------------------------------------------- % File : GRP008-1 : TPTP v7.2.0. Released v2.2.0. % Domain : Group Theory (Cancellative semigroups) % Axioms : Cancellative semigroups axioms % Version : [MP96] (equality) axioms. % English : % Refs : [McC98] McCune (1998), Email to G. Sutcliffe % : [MP96] McCune & Padmanabhan (1996), Automated Deduction in Eq % Source : [McC98] % Names : % Status : Satisfiable % Syntax : Number of clauses : 2 ( 0 non-Horn; 0 unit; 2 RR) % Number of atoms : 4 ( 4 equality) % Maximal clause size : 2 ( 2 average) % Number of predicates : 1 ( 0 propositional; 2-2 arity) % Number of functors : 1 ( 0 constant; 2-2 arity) % Number of variables : 6 ( 0 singleton) % Maximal term depth : 2 ( 2 average) % SPC : % Comments : Requires GRP008-0.ax %-------------------------------------------------------------------------- %----Left and right cancellation: cnf(right_cancellation,axiom, ( multiply(A,B) != multiply(C,B) | A = C )). cnf(left_cancellation,axiom, ( multiply(A,B) != multiply(A,C) | B = C )). %--------------------------------------------------------------------------