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v3
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Theorem
upper_semicontinuous_iff_is_open
Modification history
2022-09-30 23:37
src/topology/semicontinuous.lean
feat(topology/semicontinuous): characterization by closed sets of semicontinuous maps to a linear order (#16442)
Deleted
upper_semicontinuous_iff_is_open
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2021-05-27 00:46
src/topology/semicontinuous.lean
feat(topology/semicontinuous): basics on lower and upper semicontinuous functions (#7693) …
Added
upper_semicontinuous_iff_is_open
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