Mathlib v3 is deprecated. Go to Mathlib v4

Theorem sdiff_le_sdiff_self

Modification history

2021-11-04 18:49
src/order/boolean_algebra.lean
feat(data/finset/interval): `finset α` is a locally finite order (#9963)
Deleted sdiff_le_sdiff_selfView on Github →
2021-04-06 01:49
src/order/boolean_algebra.lean
refactor(order/boolean_algebra): generalized Boolean algebras (#6775) …
Added sdiff_le_sdiff_selfView on Github →