Combining Texts

All the ideas for 'fragments/reports', 'An Introduction to Modal Logic' and 'Against 'Ostrich Nominalism''

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8 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]

7. Existence / D. Theories of Reality / 3. Reality

8507	Some think of reality as made of things; I prefer facts or states of affairs [Armstrong]

8. Modes of Existence / D. Universals / 1. Universals

8506	Particulars and properties are distinguishable, but too close to speak of a relation [Armstrong]

8. Modes of Existence / E. Nominalism / 1. Nominalism / a. Nominalism

8505	Refusal to explain why different tokens are of the same type is to be an ostrich [Armstrong]

21. Aesthetics / C. Artistic Issues / 7. Art and Morality

468	Musical performance can reveal a range of virtues [Damon of Ath.]