Copulas {is, existence} can ascribe existence to something. "Is" as copula can ascribe being {attribution, copula} as classes or categories, of which things are examples {instantiation, copula}.
Used as copula, "is" can ascribe being as a quality {copulative}|.
Used as copula, "is" can ascribe being as a class {class inclusion}.
Used as copula, "is" can ascribe being as a substance {constitution, substance} {existential}.
Used as copula, "is" can ascribe being as substitutability or equivalence {identity, equivalence} {equivalence, identity} {numerical identity}.
6-Philosophy-Metaphysics-Existence
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Date Modified: 2022.0225