5 ideas
1403 | A rational donkey would starve to death between two totally identical piles of hay [Buridan, by PG] |
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] |
5655 | Happiness is not satisfaction of desires, but fulfilment of values [Bradley, by Scruton] |