theorem Dictionary.instAgentAtToParent
theorem Dictionary.instAgentAtToParent: ∀ (x t : Type) [Agent.At x t], IndependentContinuant.At x t
theorem Dictionary.instAgentAtToParent
theorem Dictionary.instAgentAtToParent: ∀ (x t : Type) [Agent.At x t], IndependentContinuant.At x t