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Theorem set.univ_nonempty

Modification history

2020-02-05 06:25
src/data/set/basic.lean
refactor(*): migrate from `≠ ∅` to `set.nonempty` (#1954) …
Modified set.univ_nonemptyView on Github →
2019-12-05 01:31
src/data/set/basic.lean
feat(data/set/basic): define `set.nonempty` (#1779) …
Added set.univ_nonemptyView on Github →