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mathematrucker
  • Member for 13 years, 8 months
  • Last seen more than a week ago
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Enjoy problem-solving as a hobby.
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19
What is the smallest cardinality of a Kuratowski 14-set?
11
Is there a list of all connected T_0-spaces with 5 points?
10
Examples of topologies in which all open sets are regular?
10
Is there an index for solutions to American Mathematical Monthly problems?
8
Can closure and complement generate 14 distinct operations on a topological space if no subset generates more than 6 distinct sets?

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