theorem instCoeDepTypeRelationalQualityOfIs._proof_1
theorem instCoeDepTypeRelationalQualityOfIs._proof_1: ∀ (x : Type) [qszr71sj.RelationalQuality.Is x], qszr71sj.RelationalQuality.Is x
theorem instCoeDepTypeRelationalQualityOfIs._proof_1
theorem instCoeDepTypeRelationalQualityOfIs._proof_1: ∀ (x : Type) [qszr71sj.RelationalQuality.Is x], qszr71sj.RelationalQuality.Is x