14 ideas
14187 | If logic is topic-neutral that means it delves into all subjects, rather than having a pure subject matter [Read] |
14188 | Not all arguments are valid because of form; validity is just true premises and false conclusion being impossible [Read] |
14182 | If the logic of 'taller of' rests just on meaning, then logic may be the study of merely formal consequence [Read] |
14183 | Maybe arguments are only valid when suppressed premises are all stated - but why? [Read] |
14184 | In modus ponens the 'if-then' premise contributes nothing if the conclusion follows anyway [Read] |
14186 | Logical connectives contain no information, but just record combination relations between facts [Read] |
14185 | Conditionals are just a shorthand for some proof, leaving out the details [Read] |
22392 | Morality is inescapable, in descriptive words such as 'dishonest', 'unjust' and 'uncharitable' [Foot] |
23685 | Reason is not a motivator of morality [Foot, by Hacker-Wright] |
23691 | Rejecting moral rules may be villainous, but it isn't inconsistent [Foot] |
22391 | Saying we 'ought to be moral' makes no sense, unless it relates to some other system [Foot] |
22389 | Morality no more consists of categorical imperatives than etiquette does [Foot] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |