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Theorem set.surj_on_iff_surjective

Modification history

2022-03-14 13:59
src/data/set/function.lean
refactor(data/set): generalize `set.restrict` and take set argument first in both `set.restrict` and `subtype.restrict` (#12510) …
Modified set.surj_on_iff_surjectiveView on Github →
2020-02-13 22:27
src/data/set/function.lean
refactor(data/set/function): use dot notation (#1934)
Modified set.surj_on_iff_surjectiveView on Github →
2018-07-17 00:30
data/set/function.lean
refactor(data/set/countable): define countable in terms of encodable
Added set.surj_on_iff_surjectiveView on Github →