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单词 lemma
释义
lemma

Mathematics
  • A mathematical statement proved primarily for use in the proof of a subsequent, more significant theorem. Exceptionally, there are some named results that are nonetheless referred to as lemmas: Gauss’ Lemma, Steinitz Exchange Lemma, Urysohn’s Lemma, and Zorn’s Lemma.


Biology
  • One of two bracts that protects the floret of grasses. The lemma is situated beneath the second (smaller) bract, known as the palea, which it surrounds. See spike.


Philosophy
  • An intermediate conclusion in a proof, marking a point en route to a conclusion.


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