Theorem: Matroid.map_loopyOn (Matroid/Map.lean)

State before:
α : Type u_1
β : Type u_2
f✝ : α → β
E I s : Set α
M : Matroid α
N : Matroid β
f : α → β
hf : InjOn f (loopyOn E).E
⊢ (loopyOn E).map f hf = loopyOn (f '' E)
Tactic:
simp [eq_loopyOn_iff]
State after:
no goals