The following procedures employ that degrees are numbers or at
least atoms:

In monom.sl and ncmonom.sl: LCorOUT, but only in order to create a value which never is used.
   TOTALDEGREE,
   (Some MonFactorP procedures return lengths, employed as 'places' by some MonTimes dito.)
   LCauto (by having an argument named "deg", which in fact is a length);
   LC2; as periods (which seem to be lengths).

------------------------------------------------

The following modes and procedures should be declared incompatible with
non-integer degree types:

 SAWS;

