aesop
α : Type u_1
M N : Matroid α
e f g : α
I X P D R : Set α
⊢ (M.Nonloop e ∧ e ∈ R) ∧ (M.Nonloop f ∧ f ∈ R) ∧ (M.Indep {e, f} → e ∈ R → f ∈ R → e = f) ↔
    (M.Nonloop e ∧ M.Nonloop f ∧ (M.Indep {e, f} → e = f)) ∧ e ∈ R ∧ f ∈ R
no goals