Please try to prove the three properties of the definition of cardinality given in Monday’s video (you can watch the video on canvas), namely reflexivity, symmetry and transitivity of the notion of “same cardinality.”

Reminder that due April 3rd are the next proof quiz (see Assignments on Canvas) and any badges quizzes you want to attempt this week (see Quizzes on Canvas). Read “Remote Structure” in the menu above for details on how these work.

On Wednesday, I’m going to give a LaTeX workshop. LaTeX is a typesetting system for mathematics and its an invaluable tool to learn as a math major; and it only takes one class period to really get going. It’s a total break from the work we’ve been doing. Join zoom as usual and I’ll have instructions.