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David Corfield's user avatar
David Corfield's user avatar
David Corfield's user avatar
David Corfield
  • Member for 15 years, 2 months
  • Last seen more than a month ago
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answer
39
Direct proof of irrationality?
Jul 15, 2010
question
36
The set-theoretic multiverse as a (bi)category
Sep 19, 2011
answer
25
whence commutative diagrams?
Jul 8, 2013
answer
25
The concept of duality
Sep 1, 2011
question
22
What are hypergroups and hyperrings good for?
Jul 2, 2010
question
21
When and why do universal objects have extra properties?
Nov 24, 2009
question
19
What would be an infinity-groupoid analogue of the duality between sets and complete atomic boolean algebras?
Jan 20, 2015
answer
17
ADE type Dynkin diagrams
Nov 25, 2009
question
16
Which languages could appear on Weil's Rosetta Stone?
Sep 8, 2010
answer
15
Essential reads in the philosophy of mathematics and set theory
Apr 18, 2012