- #1
Silviu
- 624
- 11
Hello! I have this problem:
If H is a subgroup of prime index in a finite group G, show that either H is a normal subgroup or N(H) = H.
What does N(H) means? I don't want a solution for the problem (at least not yet), I just want to know what that notation means. Thank you!
If H is a subgroup of prime index in a finite group G, show that either H is a normal subgroup or N(H) = H.
What does N(H) means? I don't want a solution for the problem (at least not yet), I just want to know what that notation means. Thank you!