User Andreas Blass

2 votes

What is the maximal number of sub spaces of a fixed dimension such that there is another sub space which intersects them are all null

answered Mar 13, 2015 at 22:19

2 votes

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The Wallman and interval topologies on non-principal ultrafilters with the Rudin-Keisler preorder

answered Nov 18, 2017 at 1:26

2 votes

A "strong" Galois-Tukey connection between orders with suborders

answered Mar 14, 2018 at 16:48

2 votes

Name of a group-like structure

answered Dec 29, 2018 at 15:18

2 votes

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Is cyclic replacement inconsistent with ZFC-Foundation?

answered Feb 8, 2020 at 16:13

2 votes

The intersection of all normal ultrafilters on a measurable cardinal

answered Jan 18, 2020 at 2:52

2 votes

Origins of substitutional quantification

answered Jul 24, 2019 at 14:18

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Are finite subsets of bi-immune sets random?

answered Apr 22, 2021 at 22:51

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Natural transformations between coterminal functors with differing domains

answered Jul 16, 2022 at 15:02

2 votes

A question on regular sets

answered Jun 9, 2022 at 17:47

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Existence of Brownian motion using Kolmogorov's extension theorem

answered Oct 1, 2023 at 1:16

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A question about dense sets

answered May 5, 2020 at 14:51

2 votes

Johnson-Lindenstrauss lemma preserves angles

answered Apr 1, 2020 at 0:31

2 votes

The setwise stabiliser of a finite set is maximal in Sym(N).

answered Mar 21, 2011 at 13:56

2 votes

Every topos is a regular category

answered Feb 18, 2011 at 20:29

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Is $X$ homeomorphic to $S^1 \times Y$?

answered Mar 16, 2011 at 14:59

2 votes

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Are these systems of linear equations always solvable

answered Nov 30, 2010 at 14:48

2 votes

Loopspace of an Eilenberg Maclane space K(G,n)

answered Sep 30, 2010 at 0:10

2 votes

A Theory of 3-connected graphs

answered Oct 22, 2010 at 15:40

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Existence of enough projectives in the category of sets

answered Oct 23, 2010 at 18:54

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Condition for Uniqueness of Measures

answered Nov 10, 2010 at 22:25

2 votes

Is this isomorphism canonical?

answered Aug 4, 2010 at 15:57

2 votes

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When can closedness of the range of an operator be checked on a positive cone?

answered Jul 6, 2010 at 3:47

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Proving inequalities over algebraic structures

answered Aug 27, 2010 at 18:48

2 votes

Upper bound on number of lines in a linear space given degree bounds

answered Aug 17, 2010 at 13:50

2 votes

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Perfectness of R-Bilinear form preserved under extension of scalars?

answered Jan 11, 2012 at 18:27

2 votes

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Nim-like(?) game winning strategy?

answered Nov 21, 2011 at 15:51

2 votes

A question about Second-Order ZFC and the Continuum Hypothesis

answered Oct 13, 2011 at 22:40

2 votes

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Operator probability in a RPN string

answered Jul 18, 2011 at 13:33

2 votes

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Formalization of n-ary functions

answered Jul 25, 2011 at 7:39

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785 Answers

What is the maximal number of sub spaces of a fixed dimension such that there is another sub space which intersects them are all null

The Wallman and interval topologies on non-principal ultrafilters with the Rudin-Keisler preorder

A "strong" Galois-Tukey connection between orders with suborders

Name of a group-like structure

Is cyclic replacement inconsistent with ZFC-Foundation?

The intersection of all normal ultrafilters on a measurable cardinal

Origins of substitutional quantification

Are finite subsets of bi-immune sets random?

Natural transformations between coterminal functors with differing domains

A question on regular sets

Existence of Brownian motion using Kolmogorov's extension theorem

A question about dense sets

Johnson-Lindenstrauss lemma preserves angles

The setwise stabiliser of a finite set is maximal in Sym(N).

Every topos is a regular category

Is $X$ homeomorphic to $S^1 \times Y$?

Are these systems of linear equations always solvable

Loopspace of an Eilenberg Maclane space K(G,n)

A Theory of 3-connected graphs

Existence of enough projectives in the category of sets

Condition for Uniqueness of Measures

Is this isomorphism canonical?

When can closedness of the range of an operator be checked on a positive cone?

Proving inequalities over algebraic structures

Upper bound on number of lines in a linear space given degree bounds

Perfectness of R-Bilinear form preserved under extension of scalars?

Nim-like(?) game winning strategy?

A question about Second-Order ZFC and the Continuum Hypothesis

Operator probability in a RPN string

Formalization of n-ary functions