theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1
theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1: ∀ (v : c1n0kwdq.Dictionary.ContradictoryBelief), c1n0kwdq.Dictionary.Belief.Is (Subtype.val v)
theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1
theorem Dictionary.instCoeContradictoryBeliefBelief._proof_1: ∀ (v : c1n0kwdq.Dictionary.ContradictoryBelief), c1n0kwdq.Dictionary.Belief.Is (Subtype.val v)