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Theorem is_open_singleton_true

Modification history

2019-05-13 23:54
src/topology/maps.lean
feat(topology/constructions): topology of sum types (#1016)
Modified is_open_singleton_trueView on Github →
2019-03-03 19:05
src/topology/constructions.lean
chore(topology): Splits topology.basic and topology.continuity (#785) …
Modified is_open_singleton_trueView on Github →
2017-08-10 16:41
topology/continuity.lean
rename open -> is_open, closed -> is_closed
Added is_open_singleton_trueView on Github →