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21727 | Definite descriptions theory eliminates the King of France, but not the Queen of England [Linsky,B] |
Full Idea: The theory of definite descriptions may eliminate apparent commitment to such entities as the present King of France, but certainly not to the present Queen of England. | |
From: Bernard Linsky (Russell's Metaphysical Logic [1999], 7.3) |
21719 | Extensionalism means what is true of a function is true of coextensive functions [Linsky,B] |
Full Idea: With the principle of extensionality anything true of one propositional functions will be true of every coextensive one. | |
From: Bernard Linsky (Russell's Metaphysical Logic [1999], 6.3) |