f-DERIVATIONS AND (f; g)-DERIVATIONS OF MV -ALGEBRAS

In this paper, we extend the notion of derivation ofMV -algebras and givesome illustrative examples. Moreover, as a generalization of derivation ofMV -algebraswe introduce the notion of f-derivations and (f; g)-derivations of MV -algebras. Also,we investigate some properties of them.

کلیدواژه ها:

MV -algebra ، Lattice ، BCI n BCK-algebra ، Derivation ، (f ، g)-derivation