Theorem: Matroid.loopyOn_loop_iff (Matroid/Loop.lean)

State before:
α : Type u_1
β : Type u_2
M N : Matroid α
e f : α
B L L' I X Y Z F C K E : Set α
⊢ (loopyOn E).Loop e ↔ e ∈ E
Tactic:
simp [Loop]
State after:
no goals