22 ideas
19066 | Philosophy aims to understand the world, through ordinary experience and science [Dummett] |
6294 | In the beginning was the Word, and the Word was with God, and the word was God [John] |
19067 | A successful proof requires recognition of truth at every step [Dummett] |
8821 | Jesus said he bore witness to the truth. Pilate asked, What is truth? [John] |
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] |
19064 | Holism is not a theory of meaning; it is the denial that a theory of meaning is possible [Dummett] |
21740 | I doubt whether ethics is part of philosophy [Russell] |
21741 | 'You ought to do p' primarily has emotional content, expressing approval [Russell] |
21746 | Unlike hate, all desires can be satisfied by love [Russell] |
21747 | Goodness is a combination of love and knowledge [Russell] |
21743 | In wartime, happiness is hating the enemy, because it gives the war a purpose [Russell] |
21742 | Originally virtue was obedience, to gods, government, or custom [Russell] |
21745 | Act so as to produce harmonious rather than discordant desires [Russell] |
21744 | Legally curbing people's desires is inferior to improving their desires [Russell] |
22891 | We could be aware of time if senses briefly vibrated, extending their experience of movement [Russell, by Bardon] |