Extra patience required

Rather than the usual 426,600 seconds between Thursday and Tuesday classes, this week the Tuesday class isn’t until an entire 430,200 seconds have elapsed since Thursday. On the upside, if you don’t like how your 1-2am Sunday morning goes, you can have a second go at it, immediately afterwards.

Wednesday 10/25 office hours moved to Monday 10/30.

Sorry for the very late announcement, but departmental engagements have arisen that will keep me from being able to hold my normal Wednesday office hours today (10/25). Given that there is no homework due on Thursday, I hope this will not be a great inconvenience. I will have extra office hours on Monday, partly to …

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Practice midterm key: Typo on question 5 part e

Another typo. I was trying at one point to create a plausible contradiction, but gave up, yet it seems I left a completely unrelated answer there for part e. The real answer is either of these: (p→q)∧p p→(q∧p) Incidentally, the words that would have gone with the answer I left in the key would have …

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