*In which we meet the Orbit-Counting Formula*

## Groups and Group Actions: Lecture 15

May 16, 2016## Groups and Group Actions: Lecture 14

May 11, 2016*In which we explore groups of order and encounter Cauchy’s Theorem.*

## Groups and Group Actions: Lecture 13

May 9, 2016*In which we explore the Orbit-Stabiliser Theorem.*

## Groups and Group Actions: Lecture 12

May 4, 2016*In which we meet group actions.*

## Groups and Group Actions: Lecture 11

May 2, 2016*In which we meet and explore quotient groups.*

## Groups and Group Actions: Lecture 10

April 27, 2016*In which we think some more about homomorphisms, and meet normal subgroups.*

## Groups and Group Actions: Lecture 9

April 25, 2016*In which we think about homomorphisms, and wonder how many genuinely different groups there are with small orders.*

## Groups and Group Actions: Lecture 8.5

April 22, 2016*In which we wonder what a non-integer lecture is anyway.*

## Groups and Group Actions: Lecture 8

March 10, 2016*In which we prove Lagrange’s theorem, and deduce many interesting results as a consequence.*

## Groups and Group Actions: Lecture 7

March 9, 2016*In which we think about the link between equivalence relations and partitions, and meet cosets.*