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New groups from old
25/04/2009 - 00:35
11 years 13 weeks
ago
How to work without an identity element when you clearly need it
25/04/2009 - 00:48
11 years 16 weeks
ago
If you don't have an identity element, a set of local units is more than enough
25/04/2009 - 00:48
11 years 17 weeks
ago
Do an extreme case first
25/04/2009 - 03:52
11 years 15 weeks
ago
Prove that a sequence converges by passing to a subsequence
25/04/2009 - 08:08
10 years 18 weeks
ago
To prove that a sequence converges, find one or more convergent subsequences
25/04/2009 - 17:04
11 years 16 weeks
ago
To prove convergence, find a rapidly converging subsequence
25/04/2009 - 17:06
11 years 15 weeks
ago
To understand an object, consider treating it as one of a family of objects and analysing the family
25/04/2009 - 18:39
11 years 17 weeks
ago
To compute covariance, use bilinearity
26/04/2009 - 03:52
11 years 17 weeks
ago
Simplify your problem by generalizing it
26/04/2009 - 10:19
11 years 17 weeks
ago
Clarify your problem by making it more abstract
26/04/2009 - 10:36
11 years 17 weeks
ago
Think axiomatically even about concrete objects
26/04/2009 - 13:55
10 years 11 weeks
ago
Look at small cases
26/04/2009 - 21:21
11 years 16 weeks
ago
Bounding the sum by an integral
27/04/2009 - 12:27
11 years 17 weeks
ago
I have a problem about an infinite sum
27/04/2009 - 16:50
11 years 17 weeks
ago
If you want to calculate an infinite sum exactly, relate it to coefficients associated with some function
27/04/2009 - 17:03
11 years 16 weeks
ago
Bundle a family of objects into a single 'universal' object
27/04/2009 - 18:29
11 years 17 weeks
ago
To calculate an infinite sum exactly, try antidifferencing
27/04/2009 - 22:23
11 years 17 weeks
ago
Ring theory front page
28/04/2009 - 03:08
11 years 17 weeks
ago
Homotopy theory front page
28/04/2009 - 03:31
11 years 17 weeks
ago
How to compute the fundamental group of a space
28/04/2009 - 03:44
11 years 17 weeks
ago
Use topology to study your group
28/04/2009 - 04:10
11 years 17 weeks
ago
How to bound a sum of infinitely many positive real numbers
28/04/2009 - 15:27
11 years 17 weeks
ago
How to prove conditional convergence
28/04/2009 - 15:31
11 years 17 weeks
ago
Complete the square
29/04/2009 - 17:42
11 years 3 days
ago
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