lemma

noun/ˈlɛmə/

Frequency rank: #16,590 most common English word

Meaning

a subsidiary proposition proved in order to assist in the proof of a larger theorem; also, the heading or subject of a glossary entry.

Illustration for the English word “lemma”

Example sentence

The professor wrote the key lemma on the board before proving the main theorem.

Synonyms & related words

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