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D.2.9.3 subset

Procedure from library redcgs.lib (see redcgs_lib).

Usage:
subset(J,K);
(J,K) expected (ideal,ideal)
or (list, list)

Return:
1 if all the elements of J are in K, 0 if not.

Example:
 
LIB "redcgs.lib";
list J=list(7,3,2);
list K=list(1,2,3,5,7,8);
subset(J,K);
==> 1