If A and B are groups, then A x B is a group....does the same hold for subgroups? i.e. if A' is a subgroup of A and B' for B, then is A' x B' a subgroup of A x B?(adsbygoogle = window.adsbygoogle || []).push({});

Cheers,

W. =)

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Quick question about subgroups and external direct products

**Physics Forums | Science Articles, Homework Help, Discussion**