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mathematrucker
Laughlin, NV
http://www.mathematrucker.com
Enjoy problem-solving as a hobby.
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Top Questions
8
votes
Can closure and complement generate 14 distinct operations on a topological space if no subset generates more than 6 distinct sets?
gn.general-topology
asked Mar 21, 2019 at 18:47
mathoverflow.net
8
votes
Smallest relation in complement of partial order that prohibits its extension
terminology
computer-science
order-theory
combinatorial-optimization
asked Mar 13, 2022 at 20:34
mathoverflow.net
5
votes
Kuratowski closure-complement question involving unions and intersections
general-topology
asked Mar 2, 2019 at 21:53
math.stackexchange.com
5
votes
Partitions of the reals such that closures of partition elements are saturated
gn.general-topology
partitions
asked Jul 22, 2017 at 1:17
mathoverflow.net
Top Answers
19
What is the smallest cardinality of a Kuratowski 14-set?
math.stackexchange.com
11
Mathematics as a hobby
mathoverflow.net
11
Is there a list of all connected T_0-spaces with 5 points?
mathoverflow.net
10
Is there an index for solutions to American Mathematical Monthly problems?
mathoverflow.net
9
Examples of topologies in which all open sets are regular?
math.stackexchange.com
6
How to prove that $ \text{int}(\text{cl}(A)) = \text{cl}(\text{int}(A)) $?
math.stackexchange.com
6
The Closure-Complement-Intersection Problem
mathoverflow.net
5
A question on the proof of 14 distinct sets can be formed by complementation and closure
math.stackexchange.com
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math.stackexchange.com