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Theorems · Theorem · combinatorics

Matroid.IsBasis.cardinalMk_diff_comm

Deprecated since 2026-06-03Use Matroid.IsBasis.cardinalMk_sdiff_comm instead.

∀ {α : Type u} {M : Matroid α} {I J X : Set α} [M.InvariantCardinalRank],
  M.IsBasis I X → M.IsBasis J X → Cardinal.mk ↑(I \ J) = Cardinal.mk ↑(J \ I)

Alias of Matroid.IsBasis.cardinalMk_sdiff_comm.

Defined in
Mathlib.Combinatorics.Matroid.Rank.Cardinal
Cited by
0 results in Mathlib
Foundations
Depth 22 from the axioms · uses Quot.sound
Assumes
Matroid.InvariantCardinalRank

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