Theorem: Matroid.parallel_class_eq (Matroid/Simple.lean)

State before:
α : Type u_1
M N : Matroid α
e f g : α
I X P D : Set α
inst✝ : M.Simple
he : autoParam (e ∈ M.E) _auto✝
⊢ {f | M.Parallel e f} = {e}
Tactic:
simp_rw [parallel_iff_eq he, setOf_eq_eq_singleton']
State after:
no goals