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Theorem cardinal.ne_zero_iff_nonempty

Modification history

2021-10-14 05:36
src/set_theory/cardinal.lean
chore(set_theory/cardinal): rename `is_empty`/`nonempty` lemmas (#9668) …
Deleted cardinal.ne_zero_iff_nonemptyView on Github →
2021-09-18 02:27
src/set_theory/cardinal.lean
chore(set_theory/cardinal): use notation `#`, add notation `ω` (#9217) …
Modified cardinal.ne_zero_iff_nonemptyView on Github →
2017-12-19 04:59
data/cardinal.lean
feat(data/ordinal): sup, cofinality, subtraction
Modified cardinal.ne_zero_iff_nonemptyView on Github →
2017-12-08 08:32
data/cardinal.lean
feat(data/dardinal): wellordering of cardinals
Added cardinal.ne_zero_iff_nonemptyView on Github →