Yesterday, that is Wednesday feb ¡­

Yesterday, that is Wednesday feb 6, I proved Cayley's theorem (8.16), but I used most of the time on section 9 (Orbits, cycles and the alternating group) and finished that section.

I introduced the sign of a permutation a little differently than the book, but of course the official curriculum is what stands in the book.

We do exercises on friday.

Next wedensday I'l do section 10 (Cosets and Lagrange's theorem), and if there is time, I ll start on section 11 and do direct products.

Geir