exact absurd h.symm $ StrictMember.extend_not_final _ _ _
α : Type
inst✝ : Reactor α
rtr rtr₁ : α
cpt : Component
j : ID
o₁ o₂ : Component.type (Component.type α Component.rtr) cpt
h₁ : object root{cpt}{j} = some o₁
i✝ : ID
a✝ : StrictMember Component.rtr i✝ rtr
h₂ : object (strict a✝){cpt}{j} = some o₂
h : StrictMember.final h₁ = StrictMember.extend a✝ h₂
⊢ ⊤ =
    match Component.rtr with
    | Component.rtr => ↑i✝
    | Component.rcn => i✝
    | Component.val v => i✝
no goals