Theorem: Matroid.spanning_iff_superset_base (Matroid/Closure.lean)

State before:
α : Type u_1
ι : Type u_2
M : Matroid α
F I J X Y B C R : Set α
e f x y : α
S T : Set α
hS : autoParam (S ⊆ M.E) _auto✝
⊢ M.Spanning S ↔ ∃ B, M.Base B ∧ B ⊆ S
Tactic:
rw [spanning_iff_superset_base', and_iff_left hS]
State after:
no goals