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Questions
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69
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Awfully sophisticated proof for simple facts [closed]

may 14 at 20:03 Toink 412●1●7

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5
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0
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128
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Tenacious structure

may 10 at 5:22 Mariano Suárez-Alvarez 30.6k●7●68●153

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What is flexible about flexible algebras?

apr 24 at 9:06 vibhor 1

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508
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The octonions on a bad day

mar 31 at 5:37 Marty 6,771●2●15●39

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3
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2k
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Groups that do not exist

dec 8 at 20:49 DavidLHarden 1,540●2●12

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127
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59
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64k
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Proofs without words [closed]

dec 2 at 7:18 Alon Amit 4,025●14●38

 
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2
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264
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Surfaces in $\mathbb R^3$ with negative curvature bounded away from zero

nov 1 at 13:43 Mariano Suárez-Alvarez 30.6k●7●68●153

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Serre’s theorem about regularity and homological dimension

jul 31 at 14:53 Hailong Dao 15.4k●29●69

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356
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Proving the existence of good covers

jul 14 at 14:10 Vitali Kapovitch 4,082●1●11●22

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Commutative Algebra with a View Toward Algebraic Number Theory

apr 24 12 at 22:04 Mahdi Majidi-Zolbanin 1,792●1●2●11

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