I will post here any corrections to the online notes which are found after
the start of term. Let me know if you spot anything wrong. I will give due
attribution unless people wish to remain anonymous!
I will not bother to enter here trivial errors which do not affect
the mathematical meaning and would not cause any confusion.
Page numbers refer to the full notes with proofs, not to the large format
notes without proofs used in lectures.
Introduction
On page 3 under Basic Notation the definition of "prime" is
wrong, since it allows $p=1$. Change "positive integers $p$" to
"integers $p>1$".