theorem instCoeDepTypeDispositionOfIs._proof_1
theorem instCoeDepTypeDispositionOfIs._proof_1: ∀ (x : Type) [qszr71sj.Disposition.Is x], qszr71sj.Disposition.Is x
theorem instCoeDepTypeDispositionOfIs._proof_1
theorem instCoeDepTypeDispositionOfIs._proof_1: ∀ (x : Type) [qszr71sj.Disposition.Is x], qszr71sj.Disposition.Is x