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Oct
20
answered How can function fields have different degrees over the projective line
Oct
17
answered How to show that $\Delta[n]$ isn't Kan fibrant…?
Oct
17
asked What is a copresheaf on a “precategory”?
Oct
14
answered Finite direct sum of injective resolutions
Oct
13
answered Why determinant is a natural transformation?
Oct
13
answered What is lattice with arbitrary suprema called?
Oct
12
answered Do free monads on $Set^I$ (functor category) always exist?
Oct
5
answered Why the morphisms of vector spaces, over different fields is not interesting?
Oct
4
answered Localization at an element is intersection of localizations at primes not containing the element
Oct
2
answered Tensor product of monoids and arbitrary algebraic structures
Sep
26
answered Categories with limits for large diagrams
Sep
26
asked Categories with limits for large diagrams
Sep
26
answered Formalising Statements in Category Theory with Regards to Universes (with an example of the end of a functor)
Sep
25
answered linear algebra proof about kernel
Sep
23
answered confusion over the use of universes in category theory
Sep
20
answered The existence of ends of functors.
Sep
19
answered showing logical argument is valid or invalid
Sep
17
answered Vector bundle transitions and Čech cohomology
Sep
16
answered Can a Non-Compact Manifold have Infinite Dimensional Cohomology?
Sep
16
answered Evaluation map of sheares $f^{*}(f_{*}\mathcal{F})\rightarrow\mathcal{F}$.