rfl
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
h₂ : object root{cpt}{j} = some o₂
h : o₁ = o₂
⊢ ⊤ = ⊤
no goals