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Theorem set.ne_empty_iff_exists_mem

Modification history

2020-02-05 06:25
src/data/set/basic.lean
refactor(*): migrate from `≠ ∅` to `set.nonempty` (#1954) …
Deleted set.ne_empty_iff_exists_memView on Github →
2019-12-05 01:31
src/data/set/basic.lean
feat(data/set/basic): define `set.nonempty` (#1779) …
Modified set.ne_empty_iff_exists_memView on Github →
2017-12-31 16:53
data/set/basic.lean
feat(data/ordinal): is_normal, omin, power/log, CNF, indecomposables, …
Modified set.ne_empty_iff_exists_memView on Github →
2017-08-11 17:57
algebra/lattice/filter.lean
algebra/lattice/filter: cleanup move theorems to appropriate places
Modified set.ne_empty_iff_exists_memView on Github →
2017-08-10 16:36
algebra/lattice/filter.lean
construct reals as complete, linear ordered field
Modified set.ne_empty_iff_exists_memView on Github →
2017-07-23 15:16
algebra/lattice/filter.lean
refactor(*): import content from lean/library/data and library_dev
Added set.ne_empty_iff_exists_memView on Github →