one step subgroup test

This video include that a non empty subset H of a group G is a subgroup of G if a,b belongs to H implies that ab^-1 belongs to H .
*****************************************************************************
For subgroups and complexes of group
*****************************************************************************

******************************************************************************
For queries follow me on instagram.....
.................................................................................................................................
**LIKE**
**SUBSCRIBE**
#grouptheory #abeliangroup #modernalgebra
__________________________________________

[abhibatra]

Thanks for awesome video sir... Helped a lot