(* -------------------------------------------------------------------------- *)
-(* File : GRP012-4 : TPTP v3.2.0. Released v1.0.0. *)
+(* File : GRP012-4 : TPTP v3.7.0. Released v1.0.0. *)
(* Domain : Group Theory *)
(* -------------------------------------------------------------------------- *)
-(* File : GRP004-0 : TPTP v3.2.0. Released v1.0.0. *)
+(* File : GRP004-0 : TPTP v3.7.0. Released v1.0.0. *)
(* Domain : Group Theory *)
(* Syntax : Number of clauses : 3 ( 0 non-Horn; 3 unit; 0 RR) *)
-(* Number of literals : 3 ( 3 equality) *)
+(* Number of atoms : 3 ( 3 equality) *)
(* Maximal clause size : 1 ( 1 average) *)
(* ----Redundant two axioms *)
ntheorem prove_inverse_of_product_is_product_of_inverses:
- ∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
+ (∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
∀a:Univ.
∀b:Univ.
∀identity:Univ.
∀H1:∀X:Univ.eq Univ (multiply X identity) X.
∀H2:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (multiply (multiply X Y) Z) (multiply X (multiply Y Z)).
∀H3:∀X:Univ.eq Univ (multiply (inverse X) X) identity.
-∀H4:∀X:Univ.eq Univ (multiply identity X) X.eq Univ (inverse (multiply a b)) (multiply (inverse b) (inverse a))
+∀H4:∀X:Univ.eq Univ (multiply identity X) X.eq Univ (inverse (multiply a b)) (multiply (inverse b) (inverse a)))
.
-#Univ.
-#X.
-#Y.
-#Z.
-#a.
-#b.
-#identity.
-#inverse.
-#multiply.
-#H0.
-#H1.
-#H2.
-#H3.
-#H4.
-nauto by H0,H1,H2,H3,H4;
+#Univ ##.
+#X ##.
+#Y ##.
+#Z ##.
+#a ##.
+#b ##.
+#identity ##.
+#inverse ##.
+#multiply ##.
+#H0 ##.
+#H1 ##.
+#H2 ##.
+#H3 ##.
+#H4 ##.
+nauto by H0,H1,H2,H3,H4 ##;
+ntry (nassumption) ##;
nqed.
(* -------------------------------------------------------------------------- *)