porton

Member for 14 years, 2 months
Last seen more than a month ago

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portonvictor.org
Ashkelon, Israel

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gn.general-topology

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Questions

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10

Order theory as a foundation of mathematics?

Apr 26, 2015

8

A characterization of the poset of filters on a set

Aug 16, 2013

7

Embedding a Brouwerian lattice into a Boolean lattice

Aug 19, 2013

7

Product of ultrafilters, is it an ultrafilter?

Aug 19, 2011

6

Orderings of ultrafilters

Jan 23, 2011

Answers

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8

What's a mathematician to do?

Nov 13, 2010

5

What programming languages do mathematicians use?

Mar 21, 2010

0

Filter-closed vs. chain-closed

Feb 26, 2010

0

Examples for "nice" Boolean algebras that are not complete or not atomic

Sep 18, 2015

0

Functions that can be written as direct products of other functions; question about terminology and notation

Feb 15, 2020

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gn.general-topology

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ra.rings-and-algebras

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8

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lattice-theory

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3

posts

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+10

Embedding a Brouwerian lattice into a Boolean lattice

+10

Downgrading from ZFC with universes to ZFC

+10

Filters and intersection of two binary relations

+10

Is the Rudin-Keisler order of ultrafilters linear?

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