How are the rules of validity different if we make modern assumptions about existential import than if we make traditional assumptions about existential import?

Question

Quizplus · Accepted Answer

If we make modern assumptions about existential import, we must add a rule to deal with existential import. Traditional logic assumes that universal statements imply the existence of the subject while modern logic allows for the possibility of a universal statement being true even if the subject does not exist. This difference requires an additional rule in modern logic to ensure valid reasoning.

How Are the Rules of Validity Different If We Make