| At the beginning of this paper, we said that decidability, set-oriented operations, and homomorphism were the three essential features of data models. |
| There's a cheap assumption about whatever, call it a homomorphism between form and content. |
| In the same spirit, it should be said not that Z is contained in the field Q of rational numbers but only that the homomorphism Z → Q is one-to-one. |
| We say that B is a homomorphic image of A if there is a homomorphism from A to B which is an onto map from A to B. Let A and B be L-algebras. |
| An injective homomorphism is called monomorphism, a surjective homomorpism is called epimorphism and a bijective homomorphism is called isomorphism. |
| An injective homomorphism is called monomorphism and a surjective homomorpism is called epimorphism. |
