Epistemologyについて、ここに記述してください。
https://en.wikipedia.org/wiki/Epistemology
https://ja.wikipedia.org/wiki/%E8%AA%8D%E8%AD%98%E8%AB%96
認識論（にんしきろん、独: Erkenntnistheorie、英: Epistemology、仏: Épistémologie）
1. Epistemic logic
Epistemic logic is a subfield of epistemology concerned with logical approaches to knowledge, belief and related notions. Though any logic with an epistemic interpretation may be called an epistemic logic, the most widespread type of epistemic logics in use at present are modal logics.Jun 7, 2019
2. modal logic
Modal logic is an extension of classic propositional and predicate logic that allows the use of modal operators. In others words, modal logic is everything classic logic is + modal operators. Modal operators express modality, such as: Necessity (denoted by. □Feb 1, 2013