Question

what is lemma in maths​

Answer 1

Answer:

In mathematics, informal logic and argument mapping, a lemma is a generally minor, proven proposition which is used as a stepping stone to a larger result. For that reason, it is also known as a "helping theorem" or an "auxiliary theorem"

Answer 2

A lemma is a word that stands at the head of a definition in a dictionary. All the head words in a dictionary are lemmas. Technically, it is "a base word and its inflections". ... In English, for example, run, runs and running are forms of the same lexeme, but run is the lemma.