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Theorems · Theorem · combinatorics

Matroid.delete_contract_eq_diff

Deprecated since 2026-06-03Use Matroid.delete_contract_eq_sdiff instead.

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

Alias of Matroid.delete_contract_eq_sdiff.

Defined in
Mathlib.Combinatorics.Matroid.Minor.Contract
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Foundations
Depth 84 from the axioms · uses propext, Classical.choice, Quot.sound
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Set · cited by 53352SetMatroid · cited by 1258MatroidMatroid.contract · cited by 103Matroid.contractMatroid.delete · cited by 86Matroid.deleteMatroid.delete_contract_eq_sdiff · cited by 3Matroid.delete_contract_e…Matroid.delete_contract_eq_di…CITED BYCITES

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