theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1
theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1: ∀ (v : g0c1njxx.Dictionary.ContradictoryBelief), g0c1njxx.Dictionary.Belief.Is (Subtype.val v)
theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1
theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1: ∀ (v : g0c1njxx.Dictionary.ContradictoryBelief), g0c1njxx.Dictionary.Belief.Is (Subtype.val v)