Coxeter notation uses double-bracking to represent an automorphic " doubling " of symmetry by adding a bisecting mirror to the fundamental domain.
2.
In May 2014 The Court of Appeal, in the case of " Bracking and others v Secretary of State for Work and Pensions " found that the Department for Work and Pensions'decision to close the Fund was not lawful, overturning the High Court decision of April 2013.