Combining Texts

All the ideas for 'Moral Thinking: Its Levels,Method and Point', 'Resemblance Nominalism and Russell's Regress' and 'An Introduction to Modal Logic'

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10 ideas

4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / b. Terminology of PL
9540 A 'value-assignment' (V) is when to each variable in the set V assigns either the value 1 or the value 0 [Hughes/Cresswell]
4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / d. Basic theorems of PL
9541 The Law of Transposition says (P→Q) → (¬Q→¬P) [Hughes/Cresswell]
4. Formal Logic / B. Propositional Logic PL / 4. Soundness of PL
9543 The rules preserve validity from the axioms, so no thesis negates any other thesis [Hughes/Cresswell]
5. Theory of Logic / K. Features of Logics / 4. Completeness
9544 A system is 'weakly' complete if all wffs are derivable, and 'strongly' if theses are maximised [Hughes/Cresswell]
8. Modes of Existence / E. Nominalism / 2. Resemblance Nominalism
18435 Resemblance Nominalists say that resemblance explains properties (not the other way round) [Rodriquez-Pereyra]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / i. Prescriptivism
4125 Hare says I acquire an agglomeration of preferences by role-reversal, leading to utilitarianism [Hare, by Williams,B]
4126 If we have to want the preferences of the many, we have to abandon our own deeply-held views [Williams,B on Hare]
4127 If morality is to be built on identification with the preferences of others, I must agree with their errors [Williams,B on Hare]
22483 A judgement is presciptive if we expect it to be acted on [Hare]
23. Ethics / B. Contract Ethics / 8. Contract Strategies
4360 By far the easiest way of seeming upright is to be upright [Hare]