theorem instCoeDepTypePersonOfIs._proof_1
theorem instCoeDepTypePersonOfIs._proof_1: ∀ (x : Type) [t8grzs37.Person.Is x], t8grzs37.Person.Is x
theorem instCoeDepTypePersonOfIs._proof_1
theorem instCoeDepTypePersonOfIs._proof_1: ∀ (x : Type) [t8grzs37.Person.Is x], t8grzs37.Person.Is x