Lecture 24 (19 April)

We went over the diagonalization proof of uncountability, did exercises on proving that sets are not countable, and discussed applications of uncountability.

Pictures of tilings:

• tilings in real life
• regular tilings
• aperiodic tiling pictures
• Penrose tiling showing 5-fold symmetry
• quasicrystals

Announcements

• Be sure to check your final exam schedule for conflicts. Conflicts MUST be reported to instructors by the last day of classes.
• The third honors homework (due Thursday) will be the last honors homework.