10,494 reputation
33280
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location Lancaster, United Kingdom
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visits member for 5 years, 5 months
seen 13 mins ago

Just when I thought I was out, they pull me back in


1h
comment Historical (personal) examples of teaching-based research
I had a feeling there should be a Conway example, but couldn't remember one off the top of my head
5h
comment Why aren't representations of monoids studied so much?
Assuming your latest comment is not an April Fool's joke, I look forward to reading this (although I admit I don't think about semigroups as much as I used to)
5h
reviewed Leave Open Is every algebraic $K3$ surface a quartic surface?
5h
reviewed Leave Open Normal basis with cyclotomic units
1d
reviewed Close Random sum of random variables, not in expectation
1d
reviewed Close Prize allocation of scratch codes to ensure correct number of prizes to give away
1d
comment Show that among any 6 non-negative integers one can find 2 integers so that their difference is divisible by 5
@JoeSchmoe No problem - it's an easy, honest mistake to make. Good luck getting help with your question, although as always I would recommend getting some help from a fellow student or a course instructor if possible.
1d
reviewed Looks OK “Epicycles” (Ptolemy style) in math theory?
1d
comment Show that among any 6 non-negative integers one can find 2 integers so that their difference is divisible by 5
Please don't answer off-topic questions
1d
comment Show that among any 6 non-negative integers one can find 2 integers so that their difference is divisible by 5
@AdamP.Goucher It should be noted that the whole business of "MSE is the place to go to get help with homework" is a sore point with some people; the behaviour of some anti-anti-homework people is the reason I deleted myself from MSE and will probably never return...
1d
comment Why could Mertens not prove the prime number theorem?
Well, I'm sure that grammar correction was well worth resurrecting this question for.
1d
reviewed Reject Why could Mertens not prove the prime number theorem?
2d
comment Proof that no differentiable space-filling curve exists
To Joseph O'Rourke: could you please clarify whether you had $C^1$ in mind during your question?
2d
comment Proof that no differentiable space-filling curve exists
@LennartMeier Yes, I know that Sard would apply in this case for $C^1$. My point (although perhaps not one that the OP had in mind) is that $C^1$ is strictly stronger than being everywhere differentiable, and for these kinds of functions I have no good intuition whether that makes a difference to the original question
2d
comment Proof that no differentiable space-filling curve exists
@QiaochuYuan isn't Sard's theorem about $C^k$ maps? And the question asks for differentiable, not $C^1$...
Mar
29
revised Generalization of Little Fermat Theorem for a particular $a$ and perfect shuffles
removed inappropriate tags, e.g. CGT means something very different
Mar
27
reviewed Close Set comprehension when the condition is false
Mar
27
reviewed Reopen A “better” rational approximation of pi?
Mar
26
reviewed Leave Open Lovasz's Path removal conjecture
Mar
26
comment Lovasz's Path removal conjecture
Currently the question has votes to close as "unclear what is being asked". I think it is reasonably clear what is being asked: the OP wants to know which theorem in Tutte's paper states and proves the result mentioned in her first paragraph