Subgroups

Suppose you have a group G. It can be a finite group or an infinite group; an abelian group or a non-abelian group. It doesn't matter. G can be ANY group. If H is a subset of G and a group, then we call H a subgroup of G.

Suppose you have a group G. It can be a finite group or an infinite group; an abelian group or a non-abelian group. It doesn't matter. G can be ANY group. If H is a subset of G and a group, then we call H a subgroup of G.