Peter Taylor
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 Oct 26 comment Freeman Dyson's example of an unprovable truth That fills the gap nicely. Thanks. Oct 26 comment Freeman Dyson's example of an unprovable truth I don't see the relevance of your comments on "unlikely" true statements. The contrapositive of "it seems likely, so it must be true" is not "it seems unlikely, so it must be false". Oct 25 reviewed Close Determination of a uniformly continuous, not locally Hölder-continuous function over an open set Oct 25 reviewed Leave Open Homomorphisms from the additive groups of virtual characters into certain idele groups Oct 24 comment Show that if $F$ is multiplicative, then $f$ is multiplicative How do you justify $$\sum_{d\mid n_1n_2} \mu(d)F(n_1n_2/d) = \sum_{d\mid n_1n_2} \mu(d)F(n_1/d)F(n_2/d)$$? Oct 23 answered Project Euler's Problem Number 88 Oct 23 comment Special case of the Schroeder-Bernstein Theorem I think you mean $f(U)'$, not $f(U')$, but what does the prime signify in this book? Is it set complement? Oct 20 awarded Reviewer Oct 18 reviewed Approve What is up with the x! divisions when dealing with cards? Oct 18 reviewed Reviewed derivative of limit function vs limit of derivatives Oct 18 reviewed Close A matrix problem 2 Oct 18 reviewed Close How to find the second derivative of an implicit function? Oct 17 reviewed Close Let $R$ be an infinite commmutative ring which contains a zero divisor. Show that there exists infinite many zero divisors. Oct 17 reviewed Close $f(x+y)=f(x)f(y)$ Oct 17 comment $f(x+y)=f(x)f(y)$ This question is a question on an open contest and the contest organisation has requested that it be closed until the contest finishes. Oct 17 reviewed Leave Open If prime $p\not \equiv 1 \pmod 3$, then $p^2 = a^2 + ab + b^2$ has no solutions $a,\,b \in \mathbb{N} \}$ Oct 16 comment Graph Cut Problem Is friendship symmetric? Oct 16 reviewed Leave Open Classify Finite Abelian Groups of Order 8 Oct 15 comment How does my professor come up with the recursive case in this algorithm analysis? As an aside, the "recursive array" datastructure which has a non-constant append cost is not the best choice for this situation. Oct 15 comment How does my professor come up with the recursive case in this algorithm analysis? The bit you quote talks about the cost: it's explaining the $+m+1$ later in the expression.