4 ideas
7491 | The phases of human thought are theological, then metaphysical, then positivist [Comte, by Watson] |
6564 | To affirm 'p and not-p' is to have mislearned 'and' or 'not' [Quine] |
13827 | Logical consequence isn't a black box (Tarski's approach); we should explain how arguments work [Prawitz] |
13826 | Model theory looks at valid sentences and consequence, but not how we know these things [Prawitz] |