The relationship between epistemology and logic in the context of the concepts of knowledge and belief

The breakthroughs in logic in the 20th century, enabled the concepts considered within the sub-fields of philosophy to be addressed in terms of logic and led to the emergence of logic fields that could be called "specific". One of these fields of logic is epistemic logic, which stands at the intersection of epistemology and logic. The formal study of epistemological concepts associated with epistemic logic has brought this specific field of logic to an interdisciplinary level. The aim of this thesis study is to examine the concepts of knowledge and belief that fall into the scope of the study of epistemology in terms of logic with the epistemological background formed by philosophers and to draw attention to the relationship of the subject with other specific fields of logic as well as its interdisciplinary use.