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The relation of semiadjacency of -semigroups of transformations
We consider two relations on a -semigroup of partial functions of a
given set: the inclusion of domains and the semiadjacencity (i.e., the
inclusion of the image of the first function into the domain of the second),
which characterized with an abstract point of view using the elementary system
of axioms, i.e., system conditions, recorded in the language narrow predicate
calculus with equality