IPA: /ˈkoʊsɛt/
KK: /ˈkoʊˌsɛt/
A specific group of elements formed by multiplying a subgroup by a single element from a larger group in mathematics.
In group theory, a coset can help us understand the structure of the group better.
Coset is derived from the term 'coset' in group theory, which is a combination of 'co-' (meaning together) and 'set' (meaning a collection of distinct objects). In mathematics, a coset refers to a set formed by multiplying all elements of a subgroup by a fixed element from the group, thus creating a new set that is related to the original subgroup.
Think of 'co-' meaning together, and 'set' as a collection — a coset is a collection formed together with elements from a subgroup.