Singular Manual: isFreeAlgebra

| #### 7.10.4.1 isFreeAlgebra Procedure from library `freegb.lib` (see freegb_lib). Usage: isFreeAlgebra(r); r a ring Return: boolean Purpose: check whether R is a letterplace ring (free algebra) Example:
    LIB "freegb.lib";
    ring r = 0,(x,y,z),dp;
    isFreeAlgebra(r);
    ==> 0
    ring R = freeAlgebra(r, 7);
    isFreeAlgebra(R);
    ==> 1

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