Philosophy Lexicon of Arguments

Existential generalization, logic: if an object that can be named, has a certain property, then there is at least one object with this property. See also universal generalization, universal instantiation.
Author Item Excerpt Meta data
Wiggins, David
Books on Amazon
Existential Generalization EMD II 302
Existential Generalization/Wiggins: Modal logicVs Existential generalization: E.g. "Cicero is necessarily a human being" as "N Cicero is a human": if we do not differentiate de re and de dicto here, then (Human(Cicero)) l- English (Ex)(Human x). (I- provable) - because Cicero is a name with secured sense - problem: if Cicero is a human, then there are humans - that is, the context "---" must apply to any possible world(wrong) - then there is something that is necessarily a human - N((x)[(x = Cicero)>(x is a human)]) does not help, if the reason is the secured reference of the name, then the existence follows from the English meaning of the sentence (undesirable) - solution/Wiggins: we should distinguish de re/de dicto from the reach of "necessary" itself.
II 303
Existential Generalization/Wiggins : ok for well-defined names - Existential generalization does not apply in any context of the form N (---a---) except for numbers.

Wigg I
D. Wiggins
Essays on Identity and Substance Oxford 2016

G. Evans/J. McDowell
Truth and Meaning Oxford 1977

Ev I
G. Evans
The Varieties of Reference (Clarendon Paperbacks) Oxford 1989

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Ed. Martin Schulz, access date 2017-04-24