If I apply showstat to numtheory:-invphi I find that the last line is >remove(has,sort(map(convert,invrec(a,divlist),'`*`')),FAIL) What is invrec? >?invrec returns "no matches found". Thanks to anyone who can clear up this mystery for me! And why isn't it documented? So far as I can tell numtheory:-invphi works fine. --Edwin PS I am using Maple 13.0

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