Please visit my personal home page at the following address for the latest update (17 April). An announcement about 2090 should be there by 1:30 p.m. today. In fact, go to the following address for all future updates for students in my section of this course. Students in Whiteley's section must of course follow whatever plan of action (for tests, exams, grades) that Whiteley is following. (click on the preceding to go there)
Sorry -- this link did not work until about 5 p.m. on 17 April.

Two reasons for this:

1. It is more convenient for me to type things all in one web location for all three of my classes.

2. I am turning now to a policy that I think Whiteley might well not agree with, so I do not want to use our common course web page for communications about the new policy. I have always respected what Walter and most of my colleagues in the faculty union are doing, and I am disgusted with the behavior up to now of the Administration. But as my faculty colleagues are following their own consciences, I must also follow my conscience. See my personal web page for more on details and on conscience. See also below for earlier bulletins.

(Most recent update always at the top of this file -- this one is being typed at about 12:40 p.m., 14 April.)
I have just found out that the Registrar's Office is making it hard for instructors to book rooms (instructors who want to accommodate students by giving them early exams). It seems that what I was SUPPOSED to do was to give my students the chance to write their exams ON THE ORIGINALLY SCHEDULED DATE. Any other date is less acceptable to the Registrar's Office..... This means that
it will be hard for me to offer "during strike" exams to large numbers of my students.
I am sorry I did not know this ten days ago. I would be willing to give an early exam to a large number of people, but the Registrar's Office is now making this impossible because our original exam date is already past.

Because of the above, I will be rather strict about giving permission to students in my section of MATH2090 to write a "during strike" exam.

You cannot just show up and write the exam. You must give me written proof that it will be a HARDSHIP for you if you have to write our exam after the strike ends. If you live within 30 miles of York, or so, and can get a few hours off from your job during the summer to come and write the exam, then this does not count as great hardship.

On the other hand,
if you have a flight out of the country in late April or early May to see parents, or for employment in Hong Kong or Greece or somewhere,
or have to go to hospital around then for an operation,
or have some job from which you cannot get any time off starting around then,
then this starts to count as great hardship. But you must GIVE ME PROOF IN WRITING as soon as possible that something like that is happening. Photocopy of plane ticket and/or reservations. Phone number I can call to verify the nature of the ticket. Or: Name, phone number and address of employer, whom I can call to verify that writing an exam in, say, May or June would somehow be impossible for you.

Leave the proof in writing in an envelope for Richard Ganong, in the main Mathematics Office, Ross N520, AS EARLY AS POSSIBLE. Leave a phone number and/or e-mail address where I can reach you to tell you you have permission to write the "during strike" exam in MATH 2090.

Any room I am able to reserve may be small, so not many people will get this permission to write early. I have asked for a room for our early final exam for 9 a.m. to 12 noon, Friday, 25 April.

Be aware, also, that if the strike ends around the time of my early exam, say the same day or the next day, then the early exam is cancelled. (This is university policy, not mine.)

Another thing:
Anyone who applies to me to write an early exam and who gets permission from me will also have to sign an agreement about a modified marking scheme that does not involve taking class test number 2. The marking scheme will be in the spirit of the original marking scheme, but will put more weight on the exam result.

(Typed about 3:55 p.m., 8 April:)
As of about two hours ago, there are, outside my office, stapled 9-page batches of notes to the lectures held in my section of MATH2090 during the strike.

(Time and date: 2:21 p.m., 6 April.)
I will try to have some handwritten lecture notes to the classes held during the strike in my office or on the wall outside my office, by noon tomorrow. Even just writing these out longhand takes a long time. See also my home page,, for general comments about final exam arrangements in all my courses, not just MATH2090.

Look at earlier postings to this file, in particular Assignment 7 and date for Test 2. Assignment 7 is due no later than the first day back after the strike. (Note also that what we did in class on 21 March is posted below.) I will not hold class on 7 April, having covered all the stuff I intend to cover. Moreover, I will not do any review session or any such thing after the strike ends. I will come to the first class after the strike prepared to answer questions and maybe armed with some comments about test and exam. But I will not talk about course material unless people ask me to do specific problems (concrete examples they have in mind). My duties in this course will have been fulfilled by the lectures already given together with Web postings and handwritten notes ("reasonable alternative access").

(posted 11:35 p.m., 3 April)
Yesterday the seven department Chairmen in the Faculty of Science sent out a joint e-mail, in which they said essentially that the union and the administration are, together, bringing the university to the brink of disaster. I predict that enough people will realize this, soon, that classes will resume.

I am several classes behind in the job of writing and photocopying lecture notes of the classes I have held since the strike began on 20 March (class has been meeting as usual). I will try to have something ready and waiting by noon on 7 April, in the MATH2090 envelope on the wall outside my office, where people's unwanted assignment papers, unwanted handouts, etc. have been put all term. (There were about 60 copies of one handout still there this week.... Your generation is an amazing bunch....)

Recent decision (modified Monday, 24 March): Our test Wednesday, 26 March is hereby postponed to the second class after the strike ends. If the strike lasts over a week or so (e.g., 18 months), this decision may be subject to further modification.

Walter Whiteley will of course be doing strike duty (picket line etc.), in accordance with his convictions. I do not have any strong convictions favoring one side or the other in this matter, and if I can get onto campus without too much trouble I will continue to hold classes. (Finally I have found a way to catch up with Walter! Get him out on the picket line!)

Friday's class and 3:30-5:30 tutorial were held. I would guess that a little under half the class showed up for class on Friday. But tons of people skip class all the time anyway (despite lousy test results...), so this was really a big turnout.

Added 11:30 a.m. Friday, 21 March:
It was very easy to get in from the 106 Express bus today. So I will probably teach as usual on Monday.

When a faculty member holds class as I am doing, during a strike like ours, she is obliged to provide "reasonable alternative access" to what was done in class. I will try to do this by posting stuff on this web page. The link below was finished as of 9:40 p.m. Saturday, 22 March. Class on Fri. 21 March

Also: Try the Whiteley suggested problems from Chapter 9 (except maybe some of the ones in 9.2.1 that have lots of subscripts that look like script "a"'s (having to do with "variable assignments"). Whiteley and I certainly want to ask questions involving models and the whole new vocabulary of the semantics of PL in terms of models, on our second class tests.

Our 7th assignment (below) is due
either 28 March or the first day of class after a strike,
whichever comes later.

Assignment 7: (a subset of Whiteley's assignment 7)

9.4.1 h.
(If true, give a general explanation. If false, give a specific counterexample.)

9.5.1 b.

Do the last "bullet" on Whiteley's Assignment 7 (see 2090 page). This bullet has six parts. (This hour has seven days? How did that go...?)