theorem instOnTheSpotAnswerChoiceIsToParent
theorem instOnTheSpotAnswerChoiceIsToParent: ∀ (x : Type) [OnTheSpotAnswerChoice.Is x], RightsAffectingChoice.Is x
theorem instOnTheSpotAnswerChoiceIsToParent
theorem instOnTheSpotAnswerChoiceIsToParent: ∀ (x : Type) [OnTheSpotAnswerChoice.Is x], RightsAffectingChoice.Is x