Mathematics
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Previous names on stackexchange: Goos, CS

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  • PhD Computer Science, University of Pennsylvania

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  • ScB Mathematics - Computer Science, Brown University

Unresolved Questions

An alternative set theory with 3 axioms

Can we encode Hausdorff measure and dimension with a function-valued "measure"?

Resolved Questions

Is there a computable model of ZFC?

A generalization of AM-GM using elementary symmetric polynomials

Is there a universal mapping property satisfied by the disjoint union of totally ordered sets?

Infinite chomp boards where player two wins

On clones containing all the constant functions

Answers

Any theory for which $\mathbb{N}$ is a model is $\omega$-consistent

Only 7 odd integers $n$ such that $\phi(n)$ and $\phi(n+1)$ are both powers of two

A strange equality between the smallest side length of a square made from $n$ squares, and a triangle made from $n$ triangles

Non-atomic probability spaces

Optimal way to copy and paste the same character many times

At least 31 geometric progressions required to cover $\{1, 2, 3, \ldots, 100\}$

When is a polynomial always divisible by some integer?

Product of two Cesaro-summable sequences may not be Cesaro-summable

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All Questions Answers
Votes Newest
92 What is the accepted syntax for a negative number with an exponent? Aug 3 '15
71 Are all “numbers” just one unit value transformed by a function? Oct 3 '16
43 Is this a new method for finding powers? Aug 21 '16
41 Show that $e^x > 1 + x + x^2/2! + \cdots + x^k/k!$ for $n \geq 0$, $x > 0$ by induction Feb 8 '14
40 Generating function solution to previous question $a_{n}=a_{\lfloor n/2\rfloor}+a_{\lfloor n/3 \rfloor}+a_{\lfloor n/6\rfloor}$ Sep 27 '13
37 Painting the plane, and finding points one unit apart Oct 10 '17
32 Why is $2\pi i \neq 0?$ May 21 '13
30 Finding out the area of a triangle if the coordinates of the three vertices are given Oct 6 '13
27 Can you give me some concrete examples of magmas? May 3 '14
23 Is there an “inverted” dot product? Jan 18 '18
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