Krasner [11]. Also we discuss on some basic results such as the behavior of k-hyperideals
under semihyperring homomorphisms and the structure of the lattice of k-hyperideals.
Moreover, we characterize the k-hyperideals of a quotient semihyperrings. Also by the help
of the regular equivalence relation, we construct new semihyperring and then describe all k-
hyperideals of this new semihyperring.