Combining Texts

All the ideas for 'What is so bad about Contradictions?', 'The Approach to Metaphysics' and 'A Problem about Substitutional Quantification?'

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3 ideas

1. Philosophy / E. Nature of Metaphysics / 4. Metaphysics as Science

14799

Metaphysics rests on observations, but ones so common we hardly notice them [Peirce]

2. Reason / B. Laws of Thought / 3. Non-Contradiction

9123	Someone standing in a doorway seems to be both in and not-in the room [Priest,G, by Sorensen]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

10792

The substitutional quantifier is not in competition with the standard interpretation [Kripke, by Marcus (Barcan)]