Theorem Finset.Colex.erase_le_erase

Modification history

2024-07-17 17:39

Mathlib/Combinatorics/Colex.lean

feat: If `s ≤ t` in colex, then `s \ {a} ≤ t \ {min t}` in colex (#13827) …

Added Finset.Colex.erase_le_erase View on Github →