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Questions Tagged with "category theory" (Page 2)

Explore solved questions tagged with "category theory" or help others by answering their unsolved questions related to "category theory".

Is the full subcategory of injectives reflective?

1 answer

Mathematics Asked 2 years ago by Sampah

A presheaf can be seen as a contravariant functor

0 answer

Mathematics Asked 3 years ago by rising_sea

Axiomatic definition of groups

5 answer

Mathematics Asked 3 years ago

How to define a group object given an object $a$ in a finitely complete category $C$

1 answer

Mathematics Asked 3 years ago by Falq

Proof of Lemma 5.1.5.3 in Jacob Lurie's HTT.

1 answer

Mathematics Asked 3 years ago by Robin Carlier

If $text{Mod}_{R}$ and $text{Mod}_{S}$ are equivalent, then $R$ and $S$ have the same simple modules.

1 answer

Mathematics Asked 3 years ago

Arrows in a presheaf category covariantly induce maps between subfunctors

1 answer

Mathematics Asked 3 years ago by subobject_classifier

Physical interpretation of TFTs

0 answer

Physics Asked 3 years ago

Pullback in the category of graphs

2 answer

Mathematics Asked 3 years ago by Taroccoesbrocco

Do "time points" and "durations" have an algebraic structure?

1 answer

Mathematics Asked 3 years ago

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