"I believe p, but p is not true"

The statement "I believe p, but p is not true" means that someone holds a certain belief (p) despite it being false or incorrect. In other words, their confidence or conviction in that belief does not reflect reality. This situation can happen if someone is convinced of something based on misinformation, misinterpretation, or bias, even though evidence shows the belief is wrong. It highlights that believing something does not necessarily make it true; beliefs are subjective, whereas truth depends on facts and reality.