| 1 | Here's another one: Modal Logic. | |
| 2 | We can do quite a lot with modal logic these days. | |
| 3 | An enemy compound is a great example of an objective that can be built in a non-modal way. | |
| 4 | When it comes to non binary logic, for example modal logic or probabilistic logic, humans often perform better. | |
| 5 | "The classification of propositions on the basis of whether they assert or deny the possibility, impossibility, contingency, or necessity of their content. " |