5 ideas
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] |
4001 | The meaning of a word contains all its possible uses as well as its actual ones [Nagel] |
21929 | Derrida focuses on ambiguity, but talks of 'dissemination', not traditional multiple meanings [Derrida] |