What are the ten ways something can be said to “be”? What are the five ways something can be said of something else? What are the four questions you must answer in order to truly know something? Ancient and medieval thinkers, from Aristotle to St. Thomas Aquinas, knew the answers to these questions because they had a s Memoria Press product: https://www.memoriapress.com/curriculum/logic-and-rhetoric/material-logic-online-instructional-videos-streaming-2nd-edition/