Combining Texts

All the ideas for 'fragments/reports', 'An Introduction to Modal Logic' and 'Persons, Character and Morality'

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9 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]
23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / e. Character
23279 It is important that a person can change their character, and not just be successive 'selves' [Williams,B]
23280 Kantians have an poor account of individuals, and insist on impartiality, because they ignore character [Williams,B]
23. Ethics / E. Utilitarianism / 1. Utilitarianism
23278 For utilitarians states of affairs are what have value, not matter who produced them [Williams,B]
26. Natural Theory / A. Speculations on Nature / 5. Infinite in Nature
1748 Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius]
27. Natural Reality / G. Biology / 3. Evolution
5989 Archelaus said life began in a primeval slime [Archelaus, by Schofield]