Hitting two targets: OO + group theory (pedagogy)

[Steve Holden]

"David C. Ullrich" <ullrich at math.okstate.edu> wrote in message
news:3aa11a91.5998558 at nntp.sprynet.com...
[ ... ]
> Some people would say that the reference to Genesis
> is out of place here... probably you know that some
> people would say that. Might be regarded as just
> generally inappropriate - some other people might
> think that the bit about Abel is misleading, since
> "Abelian" _does_ refer to a man named Abel, but
> not the one in Genesis.
>
[ ... ]

What's purple and commutes?














A: an Abelian grape.

sorry
 Steve