Epistemic Modals

Some articles on epistemic modals, epistemic, modals:

Linguistic Modality - Modal Categories - Epistemic Vs. Deontic Modality
... Epistemic modals are used to indicate the possibility or necessity of some piece of knowledge ... In the epistemic use, modals can be interpreted as indicating inference or some other process of reasoning involved in coming to the conclusion stated in the ... However, epistemic modals do not necessarily require inference, reasoning, or evidence ...