Lemma
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In mathematics, a lemma (plural lemmata or lemmas) is a proved proposition 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 result whose sole purpose is to help prove a 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
External links
- Lemma (mathematics) @ Wikipedia
