countableadjective math: having a bijection with a subset of the natural numbers
countableadjective math: having a bijection with the natural numbers
nieprzeliczalnyadjective
uncountableadjective mathematics: incapable of being enumerated by natural numbers
rekurencyjnie przeliczalnyadjective
recursively enumerableadjective computing theory: of a set, such that there exists a deterministic algorithm which will list all the items in the set and no others