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15
99
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Does the functor $\operatorname{Hom}(\operatorname{Spec}(-),X)$ preserve filtered colimits?

Published on
#algebraic-geometry #category-theory
65
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Clarifications needed in an exercise about semilattice and abelian monoids in Arbib and Manes' text

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#category-theory #order-theory #supremum-and-infimum #lattice-orders #monoid
53
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Pushout in categories of Set

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#elementary-set-theory #category-theory #limits-colimits #monomorphisms
39
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Typo in Exercise 1.2.1.3 in "Generic figures and their glueings" on showing the equivalence of two functor categories for reflexive graphs?

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#category-theory #functors
67
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Representing object for a functor mapping a category to composable morphisms

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#category-theory #functors #morphism #natural-transformations #hom-functor
64
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Internalizing cyclic groups?

Published on
#reference-request #category-theory #modules #cyclic-groups #monoidal-categories
109
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Path-connectedness in the language of category theory?

Published on
#general-topology #category-theory #definition #connectedness #path-connected
127
Views

Stalks as colimits

Published on
#category-theory #sheaf-theory
128
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What if the sub-object classifier is the terminal object?

Published on
#logic #category-theory #topos-theory
72
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Finding stalks of the two point topological space

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#general-topology #category-theory #sheaf-theory
78
Views

Doubt about sheafification

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#category-theory #sheaf-theory
44
Views

Binary relations from one poset to another defined as montone maps in Jean Bénabou course

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#category-theory #set-theory #relations #order-theory
41
Views

Pulling Back Natural Transformations Along Functors

Published on
#category-theory #functors #natural-transformations
104
Views

How does the 2-yoneda lemma exactly work

Published on
#category-theory #adjoint-functors #yoneda-lemma #2-categories
33
Views

Why are PROPS and their morphisms strict?

Published on
#category-theory #soft-question #monoidal-categories

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