20 ideas
20962 | Habermas seems to make philosophy more democratic [Habermas, by Bowie] |
15670 | The aim of 'post-metaphysical' philosophy is to interpret the sciences [Habermas, by Finlayson] |
15665 | We can do social philosophy by studying coordinated action through language use [Habermas, by Finlayson] |
20573 | Rather than instrumental reason, Habermas emphasises its communicative role [Habermas, by Oksala] |
10282 | Logic is the study of sound argument, or of certain artificial languages (or applying the latter to the former) [Hodges,W] |
10283 | A formula needs an 'interpretation' of its constants, and a 'valuation' of its variables [Hodges,W] |
10284 | There are three different standard presentations of semantics [Hodges,W] |
10285 | I |= φ means that the formula φ is true in the interpretation I [Hodges,W] |
10288 | Down Löwenheim-Skolem: if a countable language has a consistent theory, that has a countable model [Hodges,W] |
10289 | Up Löwenheim-Skolem: if infinite models, then arbitrarily large models [Hodges,W] |
10287 | If a first-order theory entails a sentence, there is a finite subset of the theory which entails it [Hodges,W] |
10286 | A 'set' is a mathematically well-behaved class [Hodges,W] |
20961 | What is considered a priori changes as language changes [Habermas, by Bowie] |
15667 | To understand a statement is to know what would make it acceptable [Habermas] |
15668 | Meaning is not fixed by a relation to the external world, but a relation to other speakers [Habermas, by Finlayson] |
5049 | Intelligent pleasure is the perception of beauty, order and perfection [Leibniz] |
15669 | People endorse equality, universality and inclusiveness, just by their communicative practices [Habermas, by Finlayson] |
23416 | Political involvement is needed, to challenge existing practices [Habermas, by Kymlicka] |
5048 | Perfection is simply quantity of reality [Leibniz] |
5050 | Evil serves a greater good, and pain is necessary for higher pleasure [Leibniz] |