Last week, we covered most ¡­

Last week, we covered most of Ch. V, and shall finish this material on Wednesday 07-03. Then, we shall start a quick, cursory treatment of Ch. VI, Integral Manifolds.Suggestion of new problems:Ch. IV, nr.1d, 2 (Obs. misprint: R instead of N),4, and 6. Ch.V, nr.4, 5, 11, 13, and 15. We have then covered a lot of material already, and what remains are the two most substansial chapters, VII and VIII, + a few applications from Ch. XI.Hence,we may take some time reviewing the material we have covered and solving problems, and I invite your suggestions on the best way of doing this.