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Non-existence/Empty Names/Unicorn/Solution/Moore/Millikan: Moore introduced "concepts" so that names such as "Pegasus" have something they can correspond to.
Solution/Frege: "meaning" to which referentially equivalent terms with different meaning can correspond to.
Solution/Carnap/Millikan: E.g. "Pegasus": here we are talking about our linguistic usage or of the words, not the object. ((s) semantic rise).
Identity/Existence/Sentence/Representation/Millikan: Thesis: neither sentences that contain the "is" of existence, nor the "is" of identity are representations!
Identity statement/Millikan: no representation.
Existence assertion/existence statement/Existence/Millikan: are no representation.
Intentional icon: however, identity statements and existence statements are intentional icons. However, they are more primitive icons than representations.
Identity Theorem/Existence/Millikan: although they must map in accordance with mapping rules to perform their eigenfunction,...
...the variants of the facts in the world which they map do not have to be identified.
These sentences are icons of the relations of words to the world.
That is, we do not translate them into inner icons of facts.
Moved use/move/disengaged/non-existence/Millikan: E.g: "x does not exist":
1. This is not a representation. (Also not e.g. "x exists").
2. It is not a referential use.
R. G. Millikan
Language, Thought, and Other Biological Categories: New Foundations for Realism Cambridge 1987