17 ideas
5300 | Philosophers have interpreted the world, but the point is to change it [Marx] |
19066 | Philosophy aims to understand the world, through ordinary experience and science [Dummett] |
5297 | Whether human thinking can be 'true' must be decided in practice, not theory [Marx] |
19067 | A successful proof requires recognition of truth at every step [Dummett] |
19060 | Truth-tables are dubious in some cases, and may be a bad way to explain connective meaning [Dummett] |
11066 | Deduction is justified by the semantics of its metalanguage [Dummett, by Hanna] |
19058 | Syntactic consequence is positive, for validity; semantic version is negative, with counterexamples [Dummett] |
19063 | Beth trees show semantics for intuitionistic logic, in terms of how truth has been established [Dummett] |
19059 | In standard views you could replace 'true' and 'false' with mere 0 and 1 [Dummett] |
19062 | Classical two-valued semantics implies that meaning is grasped through truth-conditions [Dummett] |
19065 | Soundness and completeness proofs test the theory of meaning, rather than the logic theory [Dummett] |
19061 | An explanation is often a deduction, but that may well beg the question [Dummett] |
22598 | The authentic self exists at the level of class, rather than the individual [Marx, by Dunt] |
6649 | Chomsky now says concepts are basically innate, as well as syntax [Chomsky, by Lowe] |
19064 | Holism is not a theory of meaning; it is the denial that a theory of meaning is possible [Dummett] |
5298 | The human essence is not found in individuals but in social relations [Marx] |
5299 | Religious feeling is social in origin [Marx] |