Theorem Disjoint.le_sdiff_of_le_left

Modification history

2026-07-15 12:13
Mathlib/Order/Heyting/Basic.lean
feat: use `to_dual` for `HeytingAlgebra` (#33543) …
Deleted Disjoint.le_sdiff_of_le_leftView on Github →
2023-04-24 08:51
Mathlib/Order/Heyting/Basic.lean
feat: `insert` and `erase` lemmas (#3569) …
Added Disjoint.le_sdiff_of_le_leftView on Github →