6005
Previous names on stackexchange: Goos, CS
Current:
- PhD Computer Science, University of Pennsylvania
Past:
- 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
Only 7 odd integers $n$ such that $\phi(n)$ and $\phi(n+1)$ are both powers of two
Optimal way to copy and paste the same character many times
At least 31 geometric progressions required to cover ${1, 2, 3, \ldots, 100}$
Examples of nonabelian semigroups without identity
When is a polynomial always divisible by some integer?
Product of two Cesaro-summable sequences may not be Cesaro-summable
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