Mathlib v3 is deprecated. Go to Mathlib v4

Theorem finset.card_le_card_of_inj_on

Modification history

2021-12-18 18:09
src/data/finset/basic.lean
split(data/finset/*): Split `data.finset.card` and `data.finset.fin` off `data.finset.basic` (#10796) …
Modified finset.card_le_card_of_inj_onView on Github →
2020-04-08 17:46
src/data/finset.lean
feat(tactic/linter): add decidable_classical linter (#2352) …
Modified finset.card_le_card_of_inj_onView on Github →
2019-10-03 17:37
src/data/finset.lean
chore(*): fix errors in library and sanity_check (#1499) …
Modified finset.card_le_card_of_inj_onView on Github →
2018-03-10 13:38
data/finset.lean
feat(group_theory): add a little bit of group theory; prove of Lagrange's theorem
Added finset.card_le_card_of_inj_onView on Github →