14 ideas
| 23367 | Even pointing a finger should only be done for a reason [Epictetus] |
| 6253 | Reason is our power of finding out true propositions [Hutcheson] |
| 14970 | Normal system K has five axioms and rules [Cresswell] |
| 14971 | D is valid on every serial frame, but not where there are dead ends [Cresswell] |
| 14972 | S4 has 14 modalities, and always reduces to a maximum of three modal operators [Cresswell] |
| 14973 | In S5 all the long complex modalities reduce to just three, and their negations [Cresswell] |
| 14976 | Reject the Barcan if quantifiers are confined to worlds, and different things exist in other worlds [Cresswell] |
| 14974 | A relation is 'Euclidean' if aRb and aRc imply bRc [Cresswell] |
| 14975 | A de dicto necessity is true in all worlds, but not necessarily of the same thing in each world [Cresswell] |
| 6256 | Can't the moral sense make mistakes, as the other senses do? [Hutcheson] |
| 6252 | Happiness is a pleasant sensation, or continued state of such sensations [Hutcheson] |
| 6257 | You can't form moral rules without an end, which needs feelings and a moral sense [Hutcheson] |
| 6254 | We are asked to follow God's ends because he is our benefactor, but why must we do that? [Hutcheson] |
| 6255 | Why may God not have a superior moral sense very similar to ours? [Hutcheson] |