[GAP Forum] Function in a previous package on Gap3

[antoine Mériaux]

Dear gap Forum,

I'm actually working on Prime specter of some algebras and i've found this 
paper :
www.algebra.uni-linz.ac.at/~juergen/Papers/rings.pdf

It explains some theory and give some gap3 (i'm not sure of the version) 
functions or packages
(i'm new in the using of gap as far as in maths :))

The function i want to use is : IsPrimeIdeal but i don't know how to do this 
on gap4

Many thanks

Antoine Mériaux
antoine.meriaux at free.fr

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