Tagged Questions
3
votes
1answer
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Beck Chevalley condition and maps of adjunctions
Suppose we have a split fibration $p : \mathbb{E}\to\mathbb{B}$ with (split) simple products. To fix notation, this means that for every projection $\pi_{I,J} : I\times J \to I$ in the base category, ...
2
votes
2answers
149 views
Monomorphisms and fibrations are preserved by pullback
I just came across a strange property of morphisms that are preserved under pullbacks, and it made me wonder. Consider a model category $\mathcal{M}$.
Because the fibrations are exactly the maps that ...
