36

Answers
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11
Cohen reals and strong measure zero sets
3
Ultrafilter and contracting maps
2
$\mathfrak{c}$-universal linear order
4
Do (Banach) ultrapowers carry some sort of ‘elementary equivalence’?
4
Which notions of forcing add a cofinal branch to an $\omega_1$-tree?
1
Darboux function on $[0,1]$ with interesting property
2
“generic” in elementary submodels
8
Defining the slowest divergent series
5
Heights of several interesting posets
13
Example of two structures
2
Density Ramsey theorems with explicit asymptotics
5
Unique Existence and the Axiom of Choice
4
A model of CH +$\lnot \diamondsuit$
3
Antichains and measure-preserving actions on Boolean algebras
4
Are there q-filters which are not ultrafilters?
3
An example of a beautiful proof that would be accessible at the high school level?
7
extensions of lebesgue measure
8
Shortest irrational path
6
Are there examples of statements that have been proven whose consistency proofs came before their proofs?
7
Haar measures in Solovay’s model
4
Images of Borel subsets of non-metric compact spaces
5
Mutually generics
3
Ultraproduct of n-dimensional Banach spaces and algebras
28
What the heck is the Continuum Hypothesis doing in Weibel’s Homological Algebra?
4
Cardinality of connected manifolds
1
Measurability of essential supremum of function of two variables
5
Cardinality of the set of countable dense subgroups of the reals up to isomorphism.
23
The half-life of a theorem, or Arnold’s principle at work
1
Dissecting a square
2
Mathematical ideas named after places
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