34 ideas
22270 | Frege changed philosophy by extending logic's ability to check the grounds of thinking [Potter on Frege] |
8939 | We should not describe human laws of thought, but how to correctly track truth [Frege, by Fisher] |
18365 | If truths are just identical with facts, then truths will make themselves true [David] |
18362 | Examples show that truth-making is just non-symmetric, not asymmetric [David] |
18360 | It is assumed that a proposition is necessarily true if its truth-maker exists [David] |
18358 | Two different propositions can have the same fact as truth-maker [David] |
18355 | What matters is truth-making (not truth-makers) [David] |
18354 | Correspondence is symmetric, while truth-making is taken to be asymmetric [David] |
18356 | Correspondence is an over-ambitious attempt to explain truth-making [David] |
18363 | Correspondence theorists see facts as the only truth-makers [David] |
18364 | Correspondence theory likes ideal languages, that reveal the structure of propositions [David] |
18359 | One proposition can be made true by many different facts [David] |
18357 | What makes a disjunction true is simpler than the disjunctive fact it names [David] |
4971 | I don't use 'subject' and 'predicate' in my way of representing a judgement [Frege] |
17745 | For Frege, 'All A's are B's' means that the concept A implies the concept B [Frege, by Walicki] |
7728 | Frege has a judgement stroke (vertical, asserting or judging) and a content stroke (horizontal, expressing) [Frege, by Weiner] |
16881 | The laws of logic are boundless, so we want the few whose power contains the others [Frege] |
7622 | In 1879 Frege developed second order logic [Frege, by Putnam] |
7729 | Frege replaced Aristotle's subject/predicate form with function/argument form [Frege, by Weiner] |
9950 | A quantifier is a second-level predicate (which explains how it contributes to truth-conditions) [Frege, by George/Velleman] |
9991 | For Frege the variable ranges over all objects [Frege, by Tait] |
10536 | Frege's domain for variables is all objects, but modern interpretations first fix the domain [Dummett on Frege] |
7730 | Frege introduced quantifiers for generality [Frege, by Weiner] |
7742 | Frege reduced most quantifiers to 'everything' combined with 'not' [Frege, by McCullogh] |
13824 | Proof theory began with Frege's definition of derivability [Frege, by Prawitz] |
13609 | Frege produced axioms for logic, though that does not now seem the natural basis for logic [Frege, by Kaplan] |
17855 | It may be possible to define induction in terms of the ancestral relation [Frege, by Wright,C] |
10607 | Frege's logic has a hierarchy of object, property, property-of-property etc. [Frege, by Smith,P] |
11008 | Existence is not a first-order property, but the instantiation of a property [Frege, by Read] |
18361 | A reflexive relation entails that the relation can't be asymmetric [David] |
22280 | Frege's account was top-down and decompositional, not bottom-up and compositional [Frege, by Potter] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |
7741 | The predicate 'exists' is actually a natural language expression for a quantifier [Frege, by Weiner] |