3 ideas
8942 | Lukasiewicz's L3 logic has three truth-values, T, F and I (for 'indeterminate') [Lukasiewicz, by Fisher] |
2667 | A false object might give the same presentation as a true one [Arcesilaus, by Cicero] |
1558 | Clearly the gods ignore human affairs, or they would have given us justice [Thrasymachus] |