simp only [epsilon_closure]
α : Type
inst✝¹ : DecidableEq α
σ : Type
inst✝ : DecidableEq σ
e : EpsilonNFA α σ
starting_state_list : List σ
state : σ
⊢ state ∈ e.epsilon_closure starting_state_list ↔
    ∃ start_state ∈ starting_state_list, e.toAbstract.EpsilonClosure start_state state
α : Type
inst✝¹ : DecidableEq α
σ : Type
inst✝ : DecidableEq σ
e : EpsilonNFA α σ
starting_state_list : List σ
state : σ
⊢ state ∈ dft (epsilon_arrow_list_to_graph e.epsilon_arrow_list) starting_state_list ↔
    ∃ start_state ∈ starting_state_list, e.toAbstract.EpsilonClosure start_state state