6 ideas
22026 | Philosophy is homesickness - the urge to be at home everywhere [Novalis] |
16456 | For modality Lewis rejected boxes and diamonds, preferring worlds, and an index for the actual one [Lewis, by Stalnaker] |
13831 | Logic is based on transitions between sentences [Prawitz] |
13825 | Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz] |
13823 | In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz] |
19591 | Desire for perfection is an illness, if it turns against what is imperfect [Novalis] |