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Andreas Blass

US

http://www.math.lsa.umich.edu/~ablass

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Top Questions
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Top Answers
215
What are some examples of colorful language in serious mathematics papers?
mathoverflow.net

137
Why do we not have to prove definitions?
math.stackexchange.com

102
Mathematical “urban legends”
mathoverflow.net

97
Set theories without “junk” theorems?
mathoverflow.net

89
Is it “vita” or “vitae”? Why?
academia.stackexchange.com

79
Division by $0$ and its restrictions
math.stackexchange.com

73
not both $2^n-1,2^n+1$ can be prime.
math.stackexchange.com

71
Categories First Or Categories Last In Basic Algebra?
mathoverflow.net

68
Why don't authors include in their publications the duration of the research?
academia.stackexchange.com

60
Does every real function have this weak continuity property?
mathoverflow.net

55
Doesn't the unprovability of the continuum hypothesis prove the continuum hypothesis?
math.stackexchange.com

54
What is Realistic Mathematics?
mathoverflow.net

54
How to politely reject a request for a letter of recommendation for a professor
academia.stackexchange.com

53
Why are modular lattices important?
math.stackexchange.com

50
Can proof by contradiction 'fail'?
math.stackexchange.com

48
Citing different papers which use different notation for the same concept,
academia.stackexchange.com

47
Is it unethical of me and can I get in trouble if a professor passes me based on an oral exam without attending class?
academia.stackexchange.com

47
Should I mention my university name when publishing a paper if I'm tenured teacher but not researcher?
academia.stackexchange.com

47
Is Euclid dead?
mathoverflow.net

46
Why can't proofs have infinitely many steps?
mathoverflow.net

45
Should Professors and by extension their TA's, hold student athletes to the same standard?
academia.stackexchange.com

44
What is limit superior and limit inferior?
math.stackexchange.com

43
Kuratowski's definition of ordered pairs
mathoverflow.net

41
What can be proven in Peano arithmetic but not Heyting arithmetic?
mathoverflow.net

40
Set theories without “junk” theorems?
mathoverflow.net

40
I solved their problem. Should I involve them?
academia.stackexchange.com

40
When factors may be cancelled in homeomorphic products?
mathoverflow.net

38
Is it possible to revoke a conference paper after the rebuttal period?
academia.stackexchange.com

37
In a proof by contradiction, how do we know the assumption is the cause of the contradiction?
math.stackexchange.com

37
Can the symmetric groups on sets of different cardinalities be isomorphic?
mathoverflow.net

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