7 ideas
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] |
9541 | The Law of Transposition says (P→Q) → (¬Q→¬P) [Hughes/Cresswell] |
9543 | The rules preserve validity from the axioms, so no thesis negates any other thesis [Hughes/Cresswell] |
9544 | A system is 'weakly' complete if all wffs are derivable, and 'strongly' if theses are maximised [Hughes/Cresswell] |
16210 | Humean supervenience says the world is just a vast mosaic of qualities in space-time [Lewis] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
9426 | The world is just a vast mosaic of little matters of local particular fact [Lewis] |