14 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] |
16668 | Modes of things exist in some way, without being full-blown substances [Gassendi] |
16730 | If matter is entirely atoms, anything else we notice in it can only be modes [Gassendi] |
10414 | Abstract objects are constituted by encoded collections of properties [Zalta, by Swoyer] |
10558 | Abstract objects are actually constituted by the properties by which we conceive them [Zalta] |
10415 | Properties make round squares and round triangles distinct, unlike exemplification [Zalta, by Swoyer] |
16619 | We observe qualities, and use 'induction' to refer to the substances lying under them [Gassendi] |
3400 | Things must have parts to intermingle [Gassendi] |
10557 | Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta] |
16593 | Atoms are not points, but hard indivisible things, which no force in nature can divide [Gassendi] |
16729 | How do mere atoms produce qualities like colour, flavour and odour? [Gassendi] |