159

Answers
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79
What are the worst notations, in your opinion ?
67
Examples of common false beliefs in mathematics. (2)
61
The phenomena of eventual counterexamples
58
Suggestions for good notation
55
Have any long-suspected irrational numbers turned out to be rational?
50
Not especially famous, long-open problems which anyone can understand (2)
44
Why were matrix determinants once such a big deal?
42
How many surjections are there from a set of size n?
39
What is the shortest program for which halting is unknown?
33
Theorems that are ‘obvious’ but hard to prove
33
What are the external triumphs of matroid theory?
32
Which popular games are the most mathematical? (2)
31
What are some correct results discovered with incorrect (or no) proofs?
31
Is all ordinary mathematics contained in high school mathematics?
31
Pseudonyms of famous mathematicians
30
Jokes in the sense of Littlewood: examples?
28
What’s your favorite equation, formula, identity or inequality?
25
What is Lagrange Inversion good for?
23
Most interesting mathematics mistake?
23
Partitions to different parts not exceeding $n$
21
What are some mathematical concepts that were (pretty much) created from scratch and do not owe a debt to previous work?
21
Lifting matrices mod 2 to integers.
20
Linear Algebra Proofs in Combinatorics?
20
Mathematicians who were late learners?-list
19
Generalizing a problem to make it easier
19
How to place k bishops on an nxn chessboard
18
Salié permutations and fair permutations
18
Fastest growing set of odd numbers such that any even number can be expressed as the sum of two elements.
18
Highbrow interpretations of Stirling number reciprocity
18
Applications of the Chinese remainder theorem
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