имя существительное 1) аннотация, краткое содержание; тема, предмет Синоним(ы): subject, theme, argument 2) [лингвистика] заметка на полях, глосса 3) [математика] лемма
математика лемма, вспомогательное утверждение
[математика] лемма
I. noun (plural lemmas or lemmata) Etymology: Latin, from Greek lēmma thing taken, assumption, from lambanein to take — more at latch 1. an auxiliary proposition used in the demonstration of another proposition 2. the argument or theme of a composition prefixed as a title or introduction; also the heading or theme of a comment or note on a text 3. a glossed word or phrase II. noun Etymology: Greek, husk, from lepein to peel — more at leper the lower of the two bracts enclosing the flower in the spikelet of grasses
A result already proved, which is needed in the proof of some further result.