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Theorem is_open_univ

Modification history

2023-01-30 21:46
src/topology/basic.lean
refactor(topology/{order,*}): review API (#18312) …
Modified is_open_univView on Github →
2022-06-29 10:03
src/topology/basic.lean
refactor(topology/*): Use `disjoint` (#14950) …
Modified is_open_univView on Github →
2017-08-10 16:41
topology/topological_space.lean
rename open -> is_open, closed -> is_closed
Added is_open_univView on Github →