case final.final h₁ _ h₂ =>
  cases u
  case final e => simp_all [e.valued h]
  case nested e => simp_all [e (c := c) (.inl $ by simp)]
α : Type
inst✝ : Hierarchical α
rtr rtr₁ : α
cpt : Component.Valued
i : ID
v : Value
c : Component.Valued
j : ID
h : c ≠ cpt ∨ j ≠ i
rtr✝ : α
o✝¹ : Component.type α (Component.val c)
h₁ : rtr✝{Component.val c}{j} = some o✝¹
rtr₂ : α
u : LawfulMemUpdate cpt i v rtr✝ rtr₂
o✝ : Component.type α (Component.val c)
h₂ : rtr₂{Component.val c}{j} = some o✝
⊢ o✝¹ = o✝
no goals