theorem instCoeDepTypeQualityOfIs._proof_1
theorem instCoeDepTypeQualityOfIs._proof_1: ∀ (x : Type) [d4qbfhxh.Quality.Is x], d4qbfhxh.Quality.Is x
theorem instCoeDepTypeQualityOfIs._proof_1
theorem instCoeDepTypeQualityOfIs._proof_1: ∀ (x : Type) [d4qbfhxh.Quality.Is x], d4qbfhxh.Quality.Is x