**Known typos in notes:**

p9, fourth line after the table. "Tertahedron" should be "Tetrahedron"

Diagram in definition 1.9.1 should contain edges between the vertices!
Definition 2.6.1, second last line of p14. The highest power of g should be o(g)-1, not o(g).
In section 2.8.1, in the last line "g^n=1, h^2=1" should be "g^n=e, h^2=e"
In 5.1.6(3), the "F" should be "k"
In 6.4.4(1), final formula, the top part of the fraction should be "9!", not "6!"
7.2.2 proof: on line 1 the "element h" should be "element x"
7.2.2 proof: on lines -3, -5 and -7 the "x^{p}y" should be "x^{p-1}y"

In the current online lecture notes file, all the above typos have now been corrected.

**Known typos in example sheets:**

Sheet 1, Q1.3(2). "and write D_n..." should be "and write D_3..."
Sheet 2, Q2.14. The intersection should obviously include the H_j
Sheet 2, Q2.15. The groups "Z_2, Z_2\times Z_3 and D_3\times Z_3" should be changed to "Z_2, S_3\times Z_2 and S_3\times D_3"
Sheet 2, Q2.23, "It clear that" should be "It is clear that"
Sheet 2, Q2.23, in the second formula "x" should be replaced by "g", and "y" should be replaced by "h".
Sheet 5, Q5.12, the indexing in the set X should be (g_0,g_1,...g_{p-1}). Thus the three times you see (g_1,g_2,...g_p), replace it with (g_0,g_1,...g_{p-1}). The indexing (g_k,g_{k+1},...) is correct.
*NEW* In the solution to 2.21, "order seven" should be "order six"