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D.15.19.1 genSymId

Procedure from library symodstd.lib (see symodstd_lib).

Usage:
genSymId(I,sigma); I ideal, sigma intvec

Assume:
size(sigma) = nvars(basering =: n

Return:
ideal J such that sigma(J) = J and J includes I

Note:
sigma is a permutation of the variables of the basering, i.e.
sigma: var(i) ----> var(sigma[i]), 1 <= i <= n.

Example:
 


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