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echinodermata
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71
Mathematical ideas that took long to define rigorously
Feb 3 '18
32
Characterization of the exterior derivative $d$
Sep 4 '14
15
Exotic bijection from $\mathbb R$ to $\mathbb R$
Feb 24 '15
14
Which functions are the composition of convex functions?
Feb 9 '16
12
Intuition for an open mapping
Feb 13 '14
11
Deleting $n$ points from a connected space
May 17 '14
11
Why do we say ‘pairwise disjoint’, rather than ‘disjoint’?
Mar 10 '19
9
Take 2: When/Why are these equal?
Apr 20 '14
8
Efficiently computing GCDs in $\mathbb{Z}[(1+\sqrt{-19})/2]$
Mar 7 '15
8
Is $\log 2\pi$ rational?
Apr 2 '14
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48
Rearrangements of a power series at the boundary of convergence
41
Suggestions for good notation
27
Intrinsic significance of differential entropy
22
Significance of scoped type variables standing for type variables and not types
16
Round NaN in Haskell

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