exact Option.some_inj.mp h ▸ h' ▸ ⟨m'⟩
α : Type
h✝ : Hierarchical α
rtr : α
cpt : Component
i : Component.idType cpt
o : Component.type α cpt
h'✝ : ∃ o, Object rtr cpt i o
h : some (Exists.choose h'✝) = some o
m' : Member cpt i rtr
h' : Member.object m' = Exists.choose h'✝
⊢ Object rtr cpt i o
no goals