theorem instCoeDepTypePersonOfIs._proof_1
theorem instCoeDepTypePersonOfIs._proof_1: ∀ (x : Type) [e3e855xn.Person.Is x], e3e855xn.Person.Is x
theorem instCoeDepTypePersonOfIs._proof_1
theorem instCoeDepTypePersonOfIs._proof_1: ∀ (x : Type) [e3e855xn.Person.Is x], e3e855xn.Person.Is x