I am struggling with a homework assignment. This next question seems to be pretty easy, once I get what I feel like I'm missing now. Anyway, here goes:
Decide if the following language is regular or not and prove your claim.
So, how do I go about doing so? Is there a thumb rule that might help? I was trying to use the pumping lemma to prove that it is not regular, but couldn't do it. I'm not even sure it really is not regular.