lemma

n. helping theory, subordinate proposition (Mathematics); headword, word that is explained or clarified

Lemma may refer to: Lemma (mathematics), a proven statement used as a stepping-stone toward the proof of another statementLemma (linguistics), the canonical form of a wordLemma (logic), which is simultaneously a premise for a contention above it and a contention for premises below it"Shadowing lemma", a fictional animal in Terry Pratchett's Discworld series, which exists in only 2 dimensions and eats mathematicians
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n. lemma, headword, entry

n. lemma, headword, word that is explained or clarified

(n.)
A preliminary or auxiliary proposition demonstrated or accepted for immediate use in the demonstration of some other proposition, as in mathematics or logic.