Combining Texts

All the ideas for 'On the Principles of Indiscernibles', 'Vague Identity: Evans misunderstood' and 'The Realm of Matter'

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3 ideas

7. Existence / A. Nature of Existence / 6. Criterion for Existence

18521	The criterion of existence is the possibility of action [Santayana]
	Full Idea: The possibility of action ...is the criterion of existence, and the test of substantiality.
	From: George Santayana (The Realm of Matter [1930], p.107), quoted by John Heil - The Universe as We Find It
	A reaction: I rather like this. I think I would say the power is the criterion of existence.

7. Existence / D. Theories of Reality / 10. Vagueness / d. Vagueness as linguistic

16458	Semantic vagueness involves alternative and equal precisifications of the language [Lewis]
	Full Idea: If vagueness is semantic indeterminacy, then wherever we have vague statements, we have several alternative precisifications of the vague language involved, all with equal claims of being 'intended'.
	From: David Lewis (Vague Identity: Evans misunderstood [1988], p.318)

28. God / B. Proving God / 2. Proofs of Reason / a. Ontological Proof

2116	The concept of an existing thing must contain more than the concept of a non-existing thing [Leibniz]
	Full Idea: There must be more in the concept of a thing which exists than in that of one which does not exist.
	From: Gottfried Leibniz (On the Principles of Indiscernibles [1696], p.134)