Sheet 2

This block of work corresponds to Week 3 (the equivalent of 2 lectures), and is designed for tutorials in Week 4.  It's about the modulus, supremum, infimum, and countability.

The relevant sections of the lecture notes are Sections 8, 10, 11, 12, 13, 14.  (Note that there is no section 9.)

For this block of work, from the lecture videos please watch video 8 (length 4:36) and try the quiz (Section/Video 8) Upper and lower bounds, then watch videos 10 (length 29:31), 11 (length 21:19), 12 (length 15:45), 13 (length 21:34), 14 (length 21:45).  Note that there is no video 9.

The problems sheet is below as a pdf attachment, and is also available as a Sheet 2 Moodle version for those who find that more convenient/accessible.

There are also optional activities for this block of work: (Sheet 2) Starter - sup and max, and (Sheet 2) Pudding - Countability.