User abcdxyz - MathOverflow

abcdxyz

Member for 14 years, 11 months
Last seen more than 6 years ago

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11 Answers

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37 votes

Which mathematicians have influenced you the most?

answered Apr 5, 2010 at 2:54

27 votes

Famous mathematical quotes

answered Dec 20, 2009 at 6:36

4 votes

What is the definition of "canonical"?

answered Mar 29, 2010 at 5:06

4 votes

Most 'unintuitive' application of the Axiom of Choice?

answered Apr 10, 2010 at 10:15

4 votes

Is there a formal notion of what we do when we 'Let X be ...'?

answered Apr 5, 2010 at 1:47

3 votes

Completion of the rationals to the reals as an inverse limit construction?

answered Mar 30, 2010 at 11:15

2 votes

In what sense Fraissean view point shows Model Theory can be done without any formal syntax and deduction rule?

answered Jan 16, 2010 at 6:55

2 votes

To what extent is it true that "number theory = mathematics"?

answered Jun 10, 2010 at 15:45

1 vote

What assumptions and methodology do metaproofs of logic theorems use and employ?

answered Dec 20, 2009 at 2:40

1 vote

Is it necessary that model of theory is a set?

answered Feb 18, 2010 at 16:51

1 vote

Accepted

A question about sigma-ring

answered Apr 1, 2010 at 5:19