Hallo, 

there seems to be improvement potential in the interpreter output )display, 
look at:

(209) -> )d op dot               

There are 2 exposed functions called dot :
  [1] (D,D) -> D1 from D
           if D has DIRPCAT(D2,D1) and D1 has TYPE and D1 has RING
  [2] (D,D) -> D1 from D
           if D has VECTCAT(D1) and D1 has TYPE and D1 has RING

This is confusing, as there is the undefined symbol D2, actually D2 must be an 
element of NNI

In both signature, D1 conditions could simplify to 
      "and D1 has RING"  has RING has TYPE anyway.

o.k. this is probably more efford.


Mit freundlichen Grüßen

Johannes Grabmeier

Prof. Dr. Johannes Grabmeier
Köckstraße 1, D-94469 Deggendorf
Tel. +49-(0)-991-2979584, Tel. +49-(0)-171-5503789
Tel. +49-(0)-991-3615-100 (d),  Fax: +49-(0)-1803-5518-17745

Mit freundlichen Grüßen

Johannes Grabmeier

Prof. Dr. Johannes Grabmeier
Köckstraße 1, D-94469 Deggendorf
Tel. +49-(0)-991-2979584, Tel. +49-(0)-171-5503789
Tel. +49-(0)-991-3615-100 (d),  Fax: +49-(0)-1803-5518-17745

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