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20
Sexy vacuity …
10
Is the following invariant of rooted trees a complete invariant?
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Why are inverse images more important than images in mathematics?
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Why are matrices ubiquitous but hypermatrices rare?
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Does $\bf pSet$ admit products?
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What is the “correct” category of multisets
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Colimits in a bigger universe
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Is there a notion of likelihood that incorporates information content?
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Comparing set relations
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Proper classes and their consequences
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A question about the isometry group of a finite metric space
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Probability and events