The main branches of philosophy are [[Metaphysics]], which is (broadly speaking) the study of what-is; [[Logic]], the rules of reasoning; [[Epistemology]], the study of knowledge; and [[Axiology]], the study of values. Notable sub-branches include: | The main branches of philosophy are [[Metaphysics]], which is (broadly speaking) the study of what-is; [[Logic]], the rules of reasoning; [[Epistemology]], the study of knowledge; and [[Axiology]], the study of values. Notable sub-branches include: |