To Know: I extended all the badges due dates to Monday, to give everyone more breathing room.

To Know: A proof quiz has been posted, due Monday.

To Know: There was some problem with the playlists on canvas; the other tab (instead of the default Playlists view) is a full directory of videos. They are all there. I’ve tried to fix the playlists by breaking them up by month. If a video is missing try the other tab.

To Do: In class on Wednesday we gave three “properties” of the definition of “same cardinality” that I labelled “Reflexivity”, “Symmetry” and “Transitivity”. Review the video/notes and then attempt a proof of Symmetry and a proof of Transitivity (I did Reflexivity in class). Hand in on canvas.