\forall H1:\forall A:Univ.\forall B:Univ.\forall C:Univ.eq Univ (double_divide (inverse (double_divide (double_divide A B) (inverse (double_divide A (inverse C))))) B) C.eq Univ (multiply a b) (multiply b a)
.
intros.
-auto paramodulation timeout=600.
+autobatch paramodulation timeout=100.
try assumption.
print proofterm.
qed.