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Ideas for 'poems', 'Proper Names' and 'Logical Necessity'

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10 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
12195 Soundness in argument varies with context, and may be achieved very informally indeed [Rumfitt]
12199 There is a modal element in consequence, in assessing reasoning from suppositions [Rumfitt]
12201 We reject deductions by bad consequence, so logical consequence can't be deduction [Rumfitt]
5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction
12194 Contradictions include 'This is red and not coloured', as well as the formal 'B and not-B' [Rumfitt]
5. Theory of Logic / F. Referring in Logic / 1. Naming / b. Names as descriptive
7746 We don't normally think of names as having senses (e.g. we don't give definitions of them) [Searle]
7747 How can a proper name be correlated with its object if it hasn't got a sense? [Searle]
7748 'Aristotle' means more than just 'an object that was christened "Aristotle"' [Searle]
7749 Reference for proper names presupposes a set of uniquely referring descriptions [Searle]
7750 Proper names are logically connected with their characteristics, in a loose way [Searle]
5. Theory of Logic / H. Proof Systems / 2. Axiomatic Proof
12198 Geometrical axioms in logic are nowadays replaced by inference rules (which imply the logical truths) [Rumfitt]