Theorems · Theorem · combinatorics
Matroid.IsBase.isBase_of_isBasis_superset
∀ {α : Type u_1} {M : Matroid α} {B I X : Set α}, M.IsBase B → B ⊆ X → M.IsBasis I X → M.IsBase I- Defined in
- Mathlib.Combinatorics.Matroid.Basic
- Cited by
- 3 results in Mathlib
- Foundations
- Depth 64 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites8
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setstatement and proof · cited by 53,352
- Matroidstatement and proof · cited by 1,258
- Matroid.Indepproof · cited by 367
- Matroid.IsBasestatement and proof · cited by 239
- Matroid.IsBasisstatement and proof · cited by 219
- Matroid.IsBasis.indepproof · cited by 51
- Matroid.IsBasis.mem_of_insert_indepproof · cited by 9
- Matroid.Indep.exists_insert_of_not_isBaseproof · cited by 5
Cited by3
Results whose statement or proof uses this declaration.
- Matroid.Indep.exists_isBase_subset_union_isBaseproof · cited by 1
- Matroid.IsBasis.transferproof · cited by 1
- Matroid.IsBasis.isBase_of_isBase_subsetproof · cited by 0