01 n. A preliminary or auxiliary proposition demonstrated or accepted for immediate use in the demonstration of some other proposition, as in mat…
pl.
Lemmata, Lemmas ((-mȧ*tȧ))
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1.
A preliminary or auxiliary proposition demonstrated or accepted for immediate use in the demonstration of some other proposition, as in mathematics or logic.(Math., Logic)
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2.
A word that is included in a glossary or list of headwords; a headword.