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Questions
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What are some examples of weak ω-categories?

apr 30 at 13:33 Omar Antolín-Camarena 1,487●7●15

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Is there a (discrete) monoid M injecting into its group completion G for which BM is not homotopy equivalent to BG?

feb 18 at 22:22 Omar Antolín-Camarena 1,487●7●15

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Which colimits commute with which limits in the category of sets?

sep 10 at 12:55 Marie Bjerrum 71●1●1

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Is there a description of sheaf cohomology in algebraic-topological terms?

aug 11 at 13:21 Akhil Mathew 12k●2●28●89

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In what sense are fields an algebraic theory?

may 27 10 at 20:14 Buschi Sergio 1,799●1●3●8