@themattsimpson @sarahdoingthing Functors turn questions about topology into questions about algebra, and so on. "The light's better here"
@Meaningness Rota might have used notes from http://www.amazon.com/Algebra-Saunders-MacLane/dp/B00195S818?tag=duckduckgo-ffsb-20 … but http://www.amazon.com/Categories-Working-Mathematician-Graduate-Mathematics/dp/0387984038/ref=asap_bc?ie=UTF8 … is the standard reference.
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@St_Rev Mmm… after reading table of contents, pretty sure not that, but my memory of it seems to be swiss cheez food product -
@St_Rev class covered universal algebra as well as category theory; can’t find a text that combines the two -
@Meaningness Birkhoff was the universal algebra guy, Mac Lane the category theory guy. Covering both at once is uh aggressive. -
@St_Rev The seminar did seem to move fairly rapidly. We did UA first, then CT as a sort of generalization of it. Plus lots of funny stories -
@Meaningness UA is really logic-heavy, I don't get it at all. -
@St_Rev logic is the only part of math I was actually semi-competent at
End of conversation
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. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.