case strict => cases cpt <;> cases e <;> exact .strict $ StrictMember.Equivalent.symm ‹_›
α : Type
inst✝¹ : Reactor α
rtr rtr₁ : α
β : Type
cpt : Component
inst✝ : Reactor β
rtr₂ : β
i✝ : ID
m₂ :
  Member cpt
    (match cpt with
    | Component.rtr => ↑i✝
    | Component.rcn => i✝
    | Component.val v => i✝)
    rtr₂
a✝ : StrictMember cpt i✝ rtr₁
e : Member.strict a✝ ∼ m₂
⊢ m₂ ∼ Member.strict a✝
no goals