4. Atheism
4.2. Agnosticism and Atheism
2-Agnosticism is the view that the truth of metaphysical claims regarding, in particular, the existence of a god or gods, or even ultimate reality, is unknown and may be impossible to know. One can be an agnostic as well as an atheist or religious believer.
3- Atheism describes a state of having no theistic beliefs; that is, no beliefs in gods or supernatural beings.