Trivium & Quadrivium

    In the article, St. Augustine "defends...the principles of logic as the inviolable foundations of knowledge" and using logic, we "find the truths of mathematics", that are "necessarily and unconditionally true; they cannot be contested".  Even now, there are truths in the world and in math that cannot not be proved fully.  There will always be something that we see is true, but cannot directly prove.  I find what St. Augustine said interesting because this idea has held through centuries.  Perhaps it is because it is an example of an absolute truth and it has proved itself to be so through the test of time.

    I found it interesting how they grouped subjects like music, arithmetic, and astrology together in quadrivium and grammar, logic, and rhetoric made the trivium.  I wonder how this trivium-quadrivium division was made and by whom.