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Results tagged with ct.category-theory
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user 61650
Enriched categories, topoi, abelian categories, monoidal categories, homological algebra.
6
votes
0
answers
149
views
Spatiality of products of locally compact locales
In Johnstone´s Sketches of an Elephant Volume 2, page 716,
lemma 4.1.8 states that for spatial locales $X$ and $Y$ with $X$ locally compact then the locale product $X\times Y$ is spatial.
Is this le …
- 159
3
votes
0
answers
447
views
Topos Theory, internal Heyting Algebra
Given a topos $\mathcal{E}$ with subobject classifier $\Omega$.
If we denote by $N\Omega$ the former of all local operators on $\Omega$, that is, Lawvere–Tierney topologies of $\mathcal{E}$, it is kn …
- 159