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v3
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Mathlib v3 is deprecated.
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Theorem
set.univ_ne_empty
Modification history
2020-02-05 06:25
src/data/set/basic.lean
refactor(*): migrate from `≠ ∅` to `set.nonempty` (#1954) …
Deleted
set.univ_ne_empty
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2018-12-24 20:12
data/set/basic.lean
feat(analysis/topology): miscellaneous topology (#484) …
Added
set.univ_ne_empty
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