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6.2 – Aut | The notion of level


The chamber structure over Nef(X)PS can be layered into levels.

The notion of level for chambers is defined iteratively, as follows:

We pick an initial chamber, denoted by D0
and defined as the only level 0 chamber.

A chamber adjacent to a level l1 chamber
but not adjacent to a level l2 chamber is said to be of level l.