Search in: Word
Vietnamese keyboard: Off
Virtual keyboard: Show
Computing (FOLDOC) dictionary (also found in English - Vietnamese, English - English (Wordnet), )
Jump to user comments
mathematics 1. Bigger than any natural number. There are
various formal set definitions in set theory: a set X is
infinite if
(i) There is a bijection between X and a proper subset of X.
(ii) There is an injection from the set N of natural numbers
to X.
(iii) There is an injection from each natural number n to X.