theorem Dictionary.instCoeBeliefConception._proof_1
theorem Dictionary.instCoeBeliefConception._proof_1: ∀ (v : mbdw2246.Dictionary.Belief), mbdw2246.Dictionary.Conception.Is (Subtype.val v)
theorem Dictionary.instCoeBeliefConception._proof_1
theorem Dictionary.instCoeBeliefConception._proof_1: ∀ (v : mbdw2246.Dictionary.Belief), mbdw2246.Dictionary.Conception.Is (Subtype.val v)