As a young teacher in an East Lansing, Mich., elementary school, Deborah Loewenberg Ball realized teaching mathematics required a special kind of knowledge. Unfortunately, she didn’t have it. Take ...
On a recent train trip from Lyon to Paris, Vladimir Voevodsky sat next to Steve Awodey and tried to convince him to change the way he does mathematics. Voevodsky, 48, is a permanent faculty member at ...
THE mathematicians’ version of nothing is the empty set. This is a collection that doesn’t actually contain anything, such as my own collection of vintage Rolls-Royces. The empty set may seem a bit ...
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