Monday Feb 17 is a holiday; no class.
Miderm 1 will be Wednesday Feb 19.
Here is some review material for the exam.
solutions to review material.Note: I had originally omitted part of the statement of problem V.6 (I hadn’t told you what the symbol \(\gamma\) stood for). I’ve updated the PDF.
Another note: Upon re-reading, I see that I left out the second half of the proof in solving V.I.a (I had forgotten to include the argument that \(\phi\) is surjective). I’ve updated the text.
the fourth problem set is now due the Sunday after the exam (rather than before the exam).
Problem set 4 due 2025-02-23
(also, I fixed a type/mistake in the statement of problem 2 of ps4, so make sure you get the latest version which indicates that it was “updated on 2025-02-13”)