Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Aristotle and Peter A. Angeles

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6 ideas

10. Modality / A. Necessity / 2. Nature of Necessity
12381 What is necessary cannot be otherwise [Aristotle]
12611 Necessity makes alternatives impossible [Aristotle]
10. Modality / A. Necessity / 3. Types of Necessity
1690 A stone travels upwards by a forced necessity, and downwards by natural necessity [Aristotle]
10. Modality / A. Necessity / 4. De re / De dicto modality
14641 A deduction is necessary if the major (but not the minor) premise is also necessary [Aristotle]
10. Modality / A. Necessity / 6. Logical Necessity
12259 Reasoning is when some results follow necessarily from certain claims [Aristotle]
17852 A thing has a feature necessarily if its denial brings a contradiction [Aristotle]