Buschi Sergio

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Name Buschi Sergio
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Age 48
I'm no a researcher, my job is secondary schools teacher, but I like to continue my Universuty studies (CAtegory theory ). I'm italian, and I'm sorry for my is very bad English. (sergiobuschi@yahoo.com)
27

Questions
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Explicit Hamel basis of real numbers

nov 17 10 at 3:36 Joel David Hamkins 74.9k●7●187●343

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A Question on Auto-Adjoint functors

sep 3 at 13:21 Todd Trimble 22.3k●1●62●96

 
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About symmetry, braids, and pseudo-functors.

dec 21 at 21:32 Buschi Sergio 1,799●1●3●8

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About Michael Barr immersion theorem for regular categories, and pretopos

dec 20 10 at 8:20 David Roberts 11.7k●2●18●55

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About a General Definition of Profunctor

apr 26 at 11:00 Michal R. Przybylek 842●3●9

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118

Answers
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8
Is the category of rings co-well-powered?
7
The category of abelian group objects
4
Topological dimension, is it local?
3
A Book You Would Like to Write
3
Universal cocompletion without leaving our universe
3
Why do filtered colimits commute with finite limits?
3
Ax–Grothendieck and the Garden of Eden
3
Reference request for category theory works which quickly prove the theorem which generalises the 1st isomorphism theorem for groups/rings/…
3
Ordinal category theory?
3
Topological proof of the Compactness Theorem in propositional logic without the Axiom of Choice
3
Negative objects in categories
3
Thompson’s group F and monoidal categories
2
Properties of functors and their adjoints
2
Adjunction between Pro and Ind Completions
2
Geometric invariant theory for geometers
2
Monoidal structure on a category with products and with terminal object
2
Categorical description of the restricted product (Adeles)
2
How to generalize equilizers in a category to hom-sets?
2
Composition of composable 2-cells in a 2-category is unambiguously defined?
2
A categorical characterization of the lexicographic order
2
“Sums-compact” objects = f.g. objects in categories of modules?
2
Stone Spaces, Locales, and Topoi for the (relative) beginner
2
Applications of Brouwer’s fixed point theorem
2
Existence of probability measure defined on all subsets (2)
2
Is there an introduction to probability theory from a structuralist/categorical perspective?
2
Extending properties of commutative rings to schemes
2
Best Algebraic Geometry text book? (other than Hartshorne)
2
Memorizing theorems
2
measure spaces as presheaves?
2
Is the ultraproduct concept fundamentally category-theoretic?
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