36

Questions
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15
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820
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Justifying the definition of arclength

nov 22 10 at 16:04 Ryan Reich 3,951●1●9●25

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15
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2
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848
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What theorem constructs an initial object for this category? (Formerly “Integrability by abstract nonsense”)

oct 16 11 at 12:11 Martin Brandenburg 29.1k●2●45●129

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2
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718
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Reverse mathematics of (co)homology?

jan 17 10 at 18:33 VA 8,230●22●44

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9
answers
1k
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Can ZFC prove “false theorems”, and still be consistent? (was “Junk Theorems” follow up)

mar 14 12 at 18:36 none 31●1

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12
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3
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676
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Do rational numbers admit a categorification which respects the following “duality”?

apr 30 10 at 14:35 Thomas Kragh 1,360●4●12

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1
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423
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Is there a “Grothendieckification” functor from elementary toposes to Grothendieck toposes?

may 22 10 at 8:47 Kevin Lin 12.9k●2●33●115

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12
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3
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293
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Endofunctors of CRing which give schemes when composed with schemes?

jul 22 10 at 2:52 James Borger 5,913●1●16●44

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653
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Nice application of generalized smooth spaces

feb 12 11 at 22:48 Patrick I-Z 423●3●7

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2
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2k
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Does any textbook take this approach to the isomorphism theorems?

dec 10 10 at 2:11 William DeMeo 576●3●10

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12
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7
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1k
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Unexpected applications of the fact that nth degree polynomimals are determined by n+1 points

aug 12 at 13:40 Joel Reyes Noche 484●1●8●17

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