Theorem: Matroid.indep_iff_forall_subset_not_circuit (Matroid/Circuit.lean)

State before:
α : Type u_1
M : Matroid α
C C' I X K C₁ C₂ R : Set α
e f x y : α
hI : autoParam (I ⊆ M.E) _auto✝
⊢ M.Indep I ↔ ∀ C ⊆ I, ¬M.Circuit C
Tactic:
rw [indep_iff_forall_subset_not_circuit', and_iff_left hI]
State after:
no goals