theorem Dictionary.ContradictoryBelief.Is.toParent
theorem Dictionary.ContradictoryBelief.Is.toParent: ∀ (x : Type) [Is x], Belief.Is x
theorem Dictionary.ContradictoryBelief.Is.toParent
theorem Dictionary.ContradictoryBelief.Is.toParent: ∀ (x : Type) [Is x], Belief.Is x