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Aug 8, 2021 at 11:17 comment added Arrow Dear @Paul, to me it is a funny term of endearment, but perhaps I should indeed try to let go of it...
Aug 8, 2021 at 11:15 comment added Paul Taylor Maybe it's time to retire the phrase "abstract nonsense"?
Aug 7, 2021 at 21:01 answer added Alp Uzman timeline score: 3
Sep 23, 2016 at 13:55 answer added HeinrichD timeline score: 11
Jul 9, 2016 at 7:04 vote accept Arrow
Jul 3, 2016 at 8:42 comment added Dag Oskar Madsen Related: mathoverflow.net/questions/118246/…
Jul 2, 2016 at 23:51 answer added Kaya Arro timeline score: 20
Jul 2, 2016 at 19:05 answer added Qiaochu Yuan timeline score: 37
Jul 2, 2016 at 13:50 comment added Arrow @lisyarus that sounds good except I don't know what "over-a-field-like" would be except maybe by working in the dual setting and looking at terminal spectrums...
Jul 2, 2016 at 13:49 history edited Arrow CC BY-SA 3.0
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Jul 2, 2016 at 13:39 comment added lisyarus Probably, the Freyd-Mitchell embedding theorem can be of some help? Maybe take an abelian category that has all finite limits and colimits and somehow restrict it to be "over-a-field-like". If we succeed in this, literally all facts concerning vector spaces will become category-theoretic.
Jul 2, 2016 at 13:37 comment added KConrad It gives a sense in which finite-dimensional vector spaces are "naturally isomorphic" to their double duals (this example was in Eilenberg and Mac Lane's first paper on category theory) and it clears up what certain constructions like tensor products or exterior powers are all about by making them solutions to a suitable universal mapping problem.
Jul 2, 2016 at 13:36 comment added Todd Trimble The first that comes to my mind is biproducts, followed by the other abelian category axioms. Experience shows those are some pretty powerful facts.
Jul 2, 2016 at 13:29 history asked Arrow CC BY-SA 3.0