“Ex hypothesi” is a Latin phrase that means “from the hypothesis” in English. It is often used in philosophical and logical contexts to indicate that a statement or argument is based on a certain assumption or hypothesis. In other words, it signals that the discussion or conclusion follows logically from the premise or assumption that has been presented.
For example, suppose someone states, “Ex hypothesi, if we assume that all humans are inherently rational beings, then we can conclude that they will make logical decisions.” It implies that the argument or conclusion is based on the assumption that all humans possess inherent rationality.