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lemma Definition
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lemma
noun(lem-ma)an auxiliary proposition used in the demonstration of another proposition
lemma
noun(lem-ma)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
lemma
noun(lem-ma)a glossed word or phrase
lemma
noun(lem-ma)the lower of the two bracts enclosing the flower in the spikelet of grasses
lemma
noun(lem-ma)a lemma in set theory: if a set S is partially ordered and if each subset for which every pair of elements is related by exactly one of the relationships "less than," "equal to," or "greater than" has an upper bound in S, then S contains at least one element for which there is no greater element in S