Lemma

In mathematics, a lemma (plural lemmata or lemmas) is a proved theorem which is used as a stepping stone to a larger result, rather than as a statement of interest by itself.

A lemma can be considered a minor theorem whose sole purpose is to help prove a more complex theorem.

There is no formal distinction between a lemma and a theorem, only one of intention.

The word derives from the Ancient Greek λῆμμα ("anything which is received, such as a gift, profit, or a bribe").

See also

• Theorem

External links

• Lemma (mathematics) @ Wikipedia