Ccard

robin on 2002-04-12T12:18:38

There is a card game based on category theory.


Category Theory

TorgoX on 2002-04-12T20:24:07

I just can't make heads nor tails out of what category theory even is!

Re:Category Theory

robin on 2002-04-14T22:26:12

I think I just about understand what it is by now, but not well enough to be able to explain it snappily.

It's a little like abstract algebra, except more abstract and less algebraic. It's a formalism used for making precise analogies between superficially unrelated mathematical theories.

Joseph Goguen has a nice paper A Categorical Manifesto, which explains clearly and convincingly why category theory is useful in computer science.

John Baez says (in this web page):

"If we try to generalize the heck out of the concept of a group, keeping associativity as a sacred property, we get the notion of a category."

which is as good a slogan as any.

And now...

Simon on 2002-05-25T19:00:08

A card game based on set theory.