42 ideas
23064 | So-called wisdom is just pondering things instead of acting [Cioran] |
23072 | Systems are the worst despotism, in philosophy and in life [Cioran] |
23075 | A text explained ceases to be a text [Cioran] |
13252 | Some truths have true negations [Beall/Restall] |
13247 | A truthmaker is an object which entails a sentence [Beall/Restall] |
13249 | (∀x)(A v B) |- (∀x)A v (∃x)B) is valid in classical logic but invalid intuitionistically [Beall/Restall] |
13243 | Excluded middle must be true for some situation, not for all situations [Beall/Restall] |
13242 | It's 'relevantly' valid if all those situations make it true [Beall/Restall] |
13246 | Relevant logic does not abandon classical logic [Beall/Restall] |
13245 | Relevant consequence says invalidity is the conclusion not being 'in' the premises [Beall/Restall] |
13254 | A doesn't imply A - that would be circular [Beall/Restall] |
13255 | Relevant logic may reject transitivity [Beall/Restall] |
13250 | Free logic terms aren't existential; classical is non-empty, with referring names [Beall/Restall] |
13235 | Logic studies consequence; logical truths are consequences of everything, or nothing [Beall/Restall] |
13238 | Syllogisms are only logic when they use variables, and not concrete terms [Beall/Restall] |
13234 | The view of logic as knowing a body of truths looks out-of-date [Beall/Restall] |
13232 | Logic studies arguments, not formal languages; this involves interpretations [Beall/Restall] |
13241 | The model theory of classical predicate logic is mathematics [Beall/Restall] |
13253 | There are several different consequence relations [Beall/Restall] |
13240 | A sentence follows from others if they always model it [Beall/Restall] |
23066 | Negation doesn't arise from reasoning, but from deep instincts [Cioran] |
13236 | Logical truth is much more important if mathematics rests on it, as logicism claims [Beall/Restall] |
13237 | Preface Paradox affirms and denies the conjunction of propositions in the book [Beall/Restall] |
23077 | The word 'being' is very tempting, but in fact means nothing at all [Cioran] |
23068 | People who really believe anti-realism don't bother to prove it [Cioran] |
13244 | Relevant necessity is always true for some situation (not all situations) [Beall/Restall] |
23078 | Opinions are fine, but having convictions means something has gone wrong [Cioran] |
23073 | Convictions are failures to study anything thoroughly [Cioran] |
23076 | If people always acted without words we would take them for robots [Cioran] |
13239 | Judgement is always predicating a property of a subject [Beall/Restall] |
23065 | If only we could write like a reptile, of endless sensations and no concepts! [Cioran] |
13248 | We can rest truth-conditions on situations, rather than on possible worlds [Beall/Restall] |
13233 | Propositions commit to content, and not to any way of spelling it out [Beall/Restall] |
23071 | We could only be responsible if we had consented before birth to who we are [Cioran] |
23070 | We morally dissolve if we spend time with excessive beauty [Cioran] |
23074 | In anxiety people cling to what reinforces it, because it is a deep need [Cioran] |
23069 | Fear cures boredom, because it is stronger [Cioran] |
23062 | It is better to watch the hours pass, than trying to fill them [Cioran] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
23067 | Suicide is pointless, because it always comes too late [Cioran] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |
23063 | The first man obviously found paradise unendurable [Cioran] |