Wed, 22 Jun 2022 09:13:48 GMT 2022-06-22T09:13:48Z You are now going to be randomly divided into 3 break-out rooms. <br /><br />Please try to discuss the question "What is a formal system ?" and why does Douglas Hofstadter represents it as a "tree" in his marvelous book "Godel, Escher, Bach" ? Info