Singular Manual: isSuperset

| #### D.14.8.7 isSuperset Procedure from library `sets.lib` (see sets_lib). Return: bool, 1 if N is a Superset of M or 0 if not Example:
    LIB "sets.lib";
    list l =1,2;
    list j =1,2,3,4;
    Set N=l;
    Set M=j;
    N;
    ==> {2; 1}
    ==> Set with 2 elements
    ==>
    M;
    ==> {4; 3; 2; 1}
    ==> Set with 4 elements
    ==>
    N>M;
    ==> 0
    M>N;
    ==> 1

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