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D.15.30.17 normalizeMonoidal

Procedure from library olga.lib (see olga_lib).

Usage:
normalizeMonoidal(L), list L

Purpose:
compute a normal form of monoidal localization data

Return:
list

Note:
given a list of polys, returns a list of all unique factors appearing in the given polys

Example:
 
LIB "olga.lib";
ring R = 0,(x,y,Dx,Dy),dp;
def S = Weyl(); setring S;
list L = x^2*y^3, (x+1)*(x*y-3*y^2+1);
L = normalizeMonoidal(L);
print(L);
==> [1]:
==>    x*y-3*y^2+1
==> [2]:
==>    x+1
==> [3]:
==>    x
==> [4]:
==>    y