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theorem BFO.instCoeObjectMaterialEntity._proof_1
theorem BFO.instCoeObjectMaterialEntity._proof_1
: ∀ (v : j12bzjgj.BFO.Object), j12bzjgj.BFO.MaterialEntity.Is (Subtype.val v)

Published by @sam ·

View source in j12bzjgj

Definitional, with no premises to accept.