Recent content by pdelong

Oh, whoops. I guess the network error didn't completely trash my first attempt. I didn't think "degenerate" implied "inadmissible". In any case, I didn't mean to imply that a group of one element somehow isn't a group.

But that isn't sufficient to make x an identity (is it?). Unless you're dealing with the degnerate case of a group consisting of one element.

But that isn't sufficient to make x an identity (is it?). Unless you're dealing with the degnerate case of a group consisting of one element.

I'm currently making my way through "Groups and Symmetry", by M. A. Armstrong [ISBN 0387966757], and I'm stuck on what seems like it should be a very simple exercise. Page 14, problem 3.8, states: However, I can't make this work unless I change the "or" to an "and". So, is this a misprint...

errata? Would you happen to know where one could get an errata listing for this book? I'm currently in the middle of it and I'm stuck on a problem. I'm pretty sure the reason I'm stuck is because of a misprint, but I just want to be sure. Thanks.