Commit 2024-03-16 17:36 16cc6aac

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feat: review and expand API on behavior of topological bases under some constructions (#10732) The main addition is IsTopologicalBasis.inf (see https://leanprover.zulipchat.com/#narrow/stream/217875-Is-there-code-for-X.3F/topic/Inf.20of.20a.20pair.20of.20topologies/near/419989448), and I also reordered things to be in the more typical order (deducing the Pi version from the iInf version rather than the converse). Also a few extra golfs and variations.

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