Mathlib Map

Structures · Combinatorics

Matroid.InvariantCardinalRank

A class stating that cardinality-valued rank is well-defined (i.e. all bases are equicardinal) for a matroid M and its minors. Notably, this holds for Finitary matroids; see Matroid.invariantCardinalRank_of_finitary.

Defined in
Mathlib.Combinatorics.Matroid.Rank.Cardinal
Shape
One type argument · adds forall_card_isBasis_diff

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Assumed by27

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