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How to verify sheaf condition in this example?

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#sheaf-theory #topos-theory
571
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Sheaves in Grothendieck Topologies

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#algebraic-geometry #category-theory #sheaf-theory #topos-theory
330
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Does this notion of morphism of noncommutative rings appear in the ring theory literature?

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#ring-theory #noncommutative-algebra #topos-theory #quantum-mechanics #noncommutative-geometry
1.4k
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What is a Lawvere-Tierney topology?

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#category-theory #topos-theory
158
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Question on the relation between sheaves over an object and sheaves on a category over that object

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#sheaf-theory #topos-theory
189
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Where else has Proposition B1.3.17 in the Elephant been proved?

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#reference-request #category-theory #topos-theory
128
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Right adjoint to the product in an over category

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#sheaf-theory #topos-theory
151
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Example of a functor from the slice topos into the whole topos which does not preserve monomorphisms

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#category-theory #sheaf-theory #topos-theory
307
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Does the category framework permit new logics?

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#logic #set-theory #category-theory #model-theory #topos-theory
578
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Why do we need a pullback for the definition or classification of subobjects?

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#set-theory #category-theory #topos-theory
3k
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Logic, geometry, and graph theory

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#geometry #logic #graph-theory #sheaf-theory #topos-theory
117
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Does a natural transformation on sites induce a natural transformation on presheaves?

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#category-theory #sheaf-theory #topos-theory
361
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What does the maximal basis for a Grothendieck topology look like?

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#sheaf-theory #topos-theory
1k
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What fragment of ZFC do we need to prove Zorn's lemma?

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#set-theory #axiom-of-choice #topos-theory
84
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A sheaf of cumulative hierarchies

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#reference-request #set-theory #sheaf-theory #forcing #topos-theory

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