Theorem MulAction.IsBlock.ncard_block_eq_relindex

Modification history

2025-09-13 17:16

Mathlib/GroupTheory/GroupAction/Blocks.lean

chore(GroupTheory/Index): rename `relindex` to `relIndex` (#19872) …

Deleted MulAction.IsBlock.ncard_block_eq_relindex View on Github →

2024-10-17 20:34

Mathlib/GroupTheory/GroupAction/Blocks.lean

feat(GroupTheory/GroupAction/Blocks): lemmas to handle blocks on finite sets (#14029) …

Added MulAction.IsBlock.ncard_block_eq_relindex View on Github →