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Theorem set.insert_nonempty

Modification history

2022-06-28 00:05
src/data/set/basic.lean
chore(data/set/basic): remove duplicate `nonempty_insert` in favor of `insert_nonempty` (#14884) …
Modified set.insert_nonemptyView on Github →
2021-01-27 18:19
src/data/set/basic.lean
refactor(data/set/basic): simpler proofs (#5920) …
Modified set.insert_nonemptyView on Github →
2019-12-05 21:00
src/data/set/basic.lean
feat(data/set/basic): more lemmas about `set.nonempty` (#1780) …
Added set.insert_nonemptyView on Github →