Singular Manual: SimplifyIdeal

| #### D.7.3.14 SimplifyIdeal Procedure from library `rinvar.lib` (see rinvar_lib). Purpose: simplify ideal I to the ideal I', do not change the names of the first m variables, new ideal I' might contain less variables. I' contains variables var(1..m) Return: list _[1] ideal I' _[2] ideal representing a map phi to a ring with probably less vars. s.th. phi(I) = I' _[3] list of variables _[4] list from 'elimpart'

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