Definition, Meaning & Synonyms

lemma

Noun
/ˈlɛm.ə/
Definition
A lemma is a preliminary proposition or assumption that is used in the proof of a larger theorem.
Examples
  • The mathematician proved several lemmas before reaching the final theorem.
  • In logic, one might use a lemma to simplify arguments.
  • Each lemma was crucial to understanding the overall theory.
Meaning
It typically refers to a subsidiary or intermediate theorem that helps in proving a more general or complex statement.
Synonyms
  • Theorem
  • Proposition
  • Corollary
  • Postulate