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IsLexSegment

checks if an ideal is lex-segment
Syntax 

IsLexSegment(I: MONOMIAL IDEAL): BOOL

Description
This function tests whether the monomial ideal I is a lex-segment ideal.

Example 
  Use R ::= QQ[x,y,z];
  I := Ideal(xy^3, y^4, x^3, x^2y, x^2z);
  IsLexSegment(I);
FALSE
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See Also