Combining Texts

All the ideas for 'Gentzen's Analysis of First-Order Proofs', 'The Nature of Necessity' and 'What's Wrong with Rape?'

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9 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
13831 Logic is based on transitions between sentences [Prawitz]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
13825 Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]
5. Theory of Logic / H. Proof Systems / 4. Natural Deduction
13823 In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]
10. Modality / E. Possible worlds / 1. Possible Worlds / d. Possible worlds actualism
18383 Plantinga says there is just this world, with possibilities expressed in propositions [Plantinga, by Armstrong]
10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation
11891 Possibilities for an individual can only refer to that individual, in some possible world [Plantinga, by Mackie,P]
25. Social Practice / F. Life Issues / 5. Sexual Morality
20887 A rape disregards the status of being a person - but so does all assault [Foa]
20888 Rape of children is dreadful, but no one thinks children should have a right of consent [Foa]
20889 If men should lust and women shouldn't, that makes rape the prevalent sexual model [Foa]
28. God / B. Proving God / 2. Proofs of Reason / a. Ontological Proof
20704 A possible world contains a being of maximal greatness - which is existence in all worlds [Plantinga, by Davies,B]