What is the study of knowledge, including belief and justification, known as?

The study of knowledge, belief, and justification is known as epistemology. This field of philosophy focuses on understanding the nature, sources, limitations, and validity of knowledge. It addresses questions such as what constitutes knowledge, how beliefs are formed and justified, and the distinction between belief and true knowledge. Epistemologists explore various theories of knowledge, including empiricism, rationalism, and constructivism, each proposing different perspectives on how knowledge is acquired and validated.

Ontology, on the other hand, deals with the nature of being and existence, focusing on categories of being and their relationships. Metaphysics explores fundamental questions about reality, including concepts such as time, space, causality, and the nature of objects and their properties. Phenomenology investigates the structures of experience and consciousness, examining how things appear to us in our perceptions. These distinctions clarify why epistemology is specifically aligned with the study of knowledge and belief.