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] |
2685 | The Greek 'philia' covers all good and fruitful relationships [Cooper,JM] |
21097 | Modern monarchies are (like republics) rule by law, rather than by men [Hume] |