diff --git a/fzd/fzd.tex b/fzd/fzd.tex index 4fc275a..546ab8b 100644 --- a/fzd/fzd.tex +++ b/fzd/fzd.tex @@ -469,6 +469,8 @@ A countour is said to be enclosed if it fits completely within another contour. Pairs of contours may belong to the same pure intersection chain. Pure Intersection chains are a chain of contours that can all be linked together by pure intersection relationships ( see figure \ref{fig:pic} ). +That is to say that all contours within a pure intersection chain are `reachable' +via pure~intersection relationships. Contours in the pure intersection chain may enclose other members in the same chain, but not the contour that they are purely intersected with (see figure \ref{fig:picwaie}). \par