Coset Space forms Partition/Examples/Dihedral Group D3/Cosets of Subgroup Generated by b

Examples of Use of Coset Space forms Partition
Consider the dihedral group $D_3$.

From Dihedral Group $D_3$: Cosets of $\gen b$, the left cosets of of the subgroup $\gen b$ generated by $b$ are:

It follows from Coset Space forms Partition that these are consequences of: