theorem Dictionary.instCoeDepTypeBeliefSystemOfIs._proof_1
theorem Dictionary.instCoeDepTypeBeliefSystemOfIs._proof_1: ∀ (x : Type) [g0c1njxx.Dictionary.BeliefSystem.Is x], g0c1njxx.Dictionary.BeliefSystem.Is x
theorem Dictionary.instCoeDepTypeBeliefSystemOfIs._proof_1
theorem Dictionary.instCoeDepTypeBeliefSystemOfIs._proof_1: ∀ (x : Type) [g0c1njxx.Dictionary.BeliefSystem.Is x], g0c1njxx.Dictionary.BeliefSystem.Is x