lemma
/ˈɫɛmə/
a proven proposition used as a stepping stone to a larger result
lemma in a sentence
“The proof relied on a clever lemma about prime factorization.”
Origin of lemma
Greek lemma something received or taken, from lambanein to take
Related Words
corollary
a proposition that follows directly from a proven theorem
conjecture
a proposition believed to be true but not yet proven
proof
a logical argument establishing the truth of a statement
postulate
a statement assumed true as a basis for reasoning
hypothesis
a proposed explanation or assumption to be tested
proof by contradiction
proving a statement by showing its negation leads to an impossibility