| We are permitted, defeasibly, to adopt the usual and mutually expected presuppositions of those around us. |
| He argues that Hume takes the belief in perfect causal regularity to be defeasibly justifying. |
| Most of the work in rational cognition is carried out by epistemic cognition, and must be done defeasibly. |
| As a result, when we encounter new beliefs that are formed in these ways, we can defeasibly discredit them even before investigating their truth. |
| This technical report describes the construction of an experimental planner that finds plans by reasoning about them defeasibly rather than by running a search algorithm. |
