coassociativity造句

例句与造句

1. Quasi-Hopf algebras are generalizations of Hopf algebras, where coassociativity only holds up to a twist.
2. The first diagram is the dual of the one expressing associativity of algebra multiplication ( called the coassociativity of the comultiplication ); the second diagram is the dual of the one expressing the existence of a multiplicative identity.
3. It's difficult to find coassociativity in a sentence. 用coassociativity造句挺难的