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A community database of topological counterexamples
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Updates for S46 (Interlocking interval topology) #683

Closed prabau closed 1 week ago

prabau commented 1 week ago

Updates for S46 (Interlocking interval topology). Add some missing traits, remove redundant ones, fix some inaccuracies, tighten the exposition.

Includes adding a trait for P165 (pseudonormal), to get an example of pseudonormal, non-normal space: https://topology.pi-base.org/spaces?q=Pseudonormal%2B%7ENormal (admittedly it's a degenerate example, but still ok to have)