Matroid.contract_delete_sdiff

∀ {α : Type u_1} (M : Matroid α) (C D : Set α), (M.contract C).delete D = (M.contract C).delete (D \ C)

Defined in: Mathlib.Combinatorics.Matroid.Minor.Contract
Cited by: 2 results in Mathlib
Foundations: Depth 82 from the axioms · uses propext, Classical.choice, Quot.sound

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