Theorem Subsemigroup.mem_corner_iff_mul_left

Modification history

2025-01-20 12:14
Mathlib/RingTheory/Idempotents.lean
feat(RingTheory/Idempotents): generalize to Semiring, add Corner and direct product decomposition (#20531) …
Added Subsemigroup.mem_corner_iff_mul_leftView on Github →