A note on the morphism theorems for (n,m)-semirings

In this paper, some properties of subtractive ideal of semirings are investigated.
In addition, we study the morphisms of semirings starting from the definitions given in the case of universal algebras. We will present several theorems of correspondence for  sub--semirings, ideals, subtractive ideals that represent the generalization of the morphism theorems of the binary case.