Adam Epstein

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Name	Adam Epstein
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Math Under Toad

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When must it be sets rather than proper classes, or vice-versa, outside of foundational mathematics?

feb 3 at 16:31 Martin Brandenburg 29.1k●2●46●130

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Who named it the Snake Lemma?

ho.history-overview ac.commutative-algebra kt.k-theory-homology

sep 12 at 10:10 Charles Matthews 9,740●13●39

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406

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Essential uniqueness of the real-analytic structure on $\mathbb R$

cv.complex-variables riemann-surfaces manifolds cohomology

jan 22 at 11:40 quid 13.3k●33●54

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343

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finite dimensional real division algebras

division-algebras lo.logic ra.rings-and-algebras at.algebraic-topology kt.k-theory-homology

aug 25 at 20:04 Adam Epstein 956●2●12

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503

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Cardinality of connected manifolds

manifolds

jun 16 11 at 23:05 Adam Epstein 956●2●12

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628

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Category of topological spaces with open or closed maps

ct.category-theory gn.general-topology

jan 8 at 20:07 Adam Epstein 956●2●12

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354

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Can one exhibit an explicit Kuratowski infinite set without invoking Replacement?

set-theory lo.logic

jan 3 at 23:33 Adam Epstein 956●2●12

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167

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Forcing over the poset of nonempty open subsets of a nice topological space

set-theory forcing gn.general-topology

jan 9 at 0:43 Adam Epstein 956●2●12

Answers

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holomorphic covering between points in Teichmuller space

Examples of “exotic” induction

Where in ordinary math do we need unbounded separation and replacement?

Undecidability and holomorphic functions (Reference request)

Basic questions on the homotopy category

Topology, the board game

Partial linearization near a hyperbolic fixed point--Classical scattering

Is R^3 the square of some topological space?

Consistency of the concept of the collection of all collection

Self-containing structures

What is a good example of a hyperspace where the base space is non-Hausdorff?

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Adam Epstein

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Questions

When must it be sets rather than proper classes, or vice-versa, outside of foundational mathematics?

Who named it the Snake Lemma?

Essential uniqueness of the real-analytic structure on $\mathbb R$

finite dimensional real division algebras

Cardinality of connected manifolds

Category of topological spaces with open or closed maps

Can one exhibit an explicit Kuratowski infinite set without invoking Replacement?

Forcing over the poset of nonempty open subsets of a nice topological space

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