👉 In the context of philosophy and theology, a doctrine is a set of beliefs or teachings that are considered to be true and binding on believers. It can refer to religious doctrines, ethical principles, philosophical theories, or any belief system that has been established by a group of people over time. The term "doctrinary" means that the doctrine is widely accepted as true and cannot be questioned or challenged. It implies that the beliefs are considered immutable and cannot be changed without breaking with tradition or principle.
