Monthly Archives: September 2012

Stevo’s Forcing Class Fall 2012 – Class 3

 (This is the third lecture in Stevo Todorcevic’s Forcing class, held in the fall of 2012. You can find the second lecture here. Quotes by Stevo are in dark blue; some are deep, some are funny, some are paraphrased so use your judgement.)

Posted in Course Notes, Stevo's Forcing Course Fall 2012 | Tagged , , | Comments closed

Stevo’s Forcing Class Fall 2012 – Class 2

(This is the second lecture in Stevo Todorcevic’s Forcing class, held in the fall of 2012. You can find the first lecture here. Quotes by Stevo are in dark blue; some are deep, some are funny, some are paraphrased so use your judgement.) (Also, there are bound to be typos. I would appreciate anyone who […]

Posted in Course Notes, Stevo's Forcing Course Fall 2012 | Tagged , , , , , | Comments closed

Is Algebra Necessary? – Andrew Hacker

Today on The Sunday Edition, on CBC Radio 1, host Michael Enright interviewed Andrew Hacker, about his controversial views on mathematics education. Basically, he thinks that demanding that all high school students master Algebra is “an onerous stumbling block for all kinds of students”. Listening to the interview this morning made me angry. I don’t […]

Posted in Math Thoughts | Tagged , , | Comments closed

Stevo’s Forcing Class Fall 2012 – Class 1

(In the fall of 2012 I will be taking Stevo Todorcevic’s class in Forcing at the University of Toronto. I will try to publish my notes here, although that won’t always be possible.) Summary of class 1. Discuss examples of ccc posets whose product is not ccc. Prove a theorem of Baumgartner’s that relates the […]

Posted in Course Notes, Stevo's Forcing Course Fall 2012 | Tagged , , , , , | Comments closed

Hindman’s Theorem write-up

It came to my attention that Leo Goldmakher had written up notes for a lecture I gave in August 2011 on the proof of Hindman’s Theorem via ultrafilters. The notes are quite nice so I thought I would share them. Here is a link to the notes (pdf) and here is Leo’s website. The lecture […]

Posted in Full Article, Presentation | Tagged , , , | Comments closed

The Battery Problem – Math for my Mom

(After writing some posts directed at other mathematicians, here is one for everybody.) I was sifting through some old issues of Crux Mathematicorum last Friday. For those of you who don’t know, this is a wonderful magazine that contains tons of math questions generally like those you would see in a math contest or olympiad, […]

Posted in Full Article, Math for my Mom, Problem Solving | Tagged , , , , | Comments closed