5 ideas
15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
2572 | Logical truth seems much less likely to 'correspond to the facts' than factual truth does [Haack] |
2570 | The same sentence could be true in one language and meaningless in another, so truth is language-relative [Haack] |
6005 | Animals are dangerous and nourishing, and can't form contracts of justice [Hermarchus, by Sedley] |
10246 | The limit of science is isomorphism of theories, with essences a matter of indifference [Weyl] |