simp only [dft_iff]
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
α : Type
inst✝¹ : DecidableEq α
σ : Type
inst✝ : DecidableEq σ
e : EpsilonNFA α σ
starting_state_list : List σ
state : σ
⊢ (∃ s ∈ starting_state_list,
      Relation.ReflTransGen (fun a b => ∃ l, (a, l) ∈ epsilon_arrow_list_to_graph e.epsilon_arrow_list ∧ b ∈ l) s
        state) ↔
    ∃ start_state ∈ starting_state_list, e.toAbstract.EpsilonClosure start_state state