theorem Dictionary.instCoeDepTypeObserverOfIs._proof_1
theorem Dictionary.instCoeDepTypeObserverOfIs._proof_1: ∀ (x : Type) [c1n0kwdq.Dictionary.Observer.Is x], c1n0kwdq.Dictionary.Observer.Is x
theorem Dictionary.instCoeDepTypeObserverOfIs._proof_1
theorem Dictionary.instCoeDepTypeObserverOfIs._proof_1: ∀ (x : Type) [c1n0kwdq.Dictionary.Observer.Is x], c1n0kwdq.Dictionary.Observer.Is x