Theorem Finset.card_le_card_mul_left_of_injective

Modification history

2026-04-17 18:38
Mathlib/Algebra/Group/Pointwise/Finset/Basic.lean
refactor(Pointwise/Finset): use IsLeftRegular/IsRightRegular (#38100) …
Modified Finset.card_le_card_mul_left_of_injectiveView on Github →
2025-06-18 19:19
Mathlib/Algebra/Group/Pointwise/Finset/Basic.lean
feat(Pointwise): cardinality of product set in GroupWithZero (#24578) …
Added Finset.card_le_card_mul_left_of_injectiveView on Github →