| ##### 7.5.2.0. linSyzSolve Procedure from library `bfun.lib` (see bfun_lib). Usage: linSyzSolve(I[,s]); I an ideal, s an optional int Return: vector, coefficient vector of linear combination of 0 in elements of I Purpose: compute a linear dependency between the elements of an ideal if such one exists Note: If s<>0, `std` is used for Groebner basis computations, otherwise, `slimgb` is used. By default, `slimgb` is used in char 0 and `std` in char >0. Display: If printlevel=1, progress debug messages will be printed, if printlevel>=2, all the debug messages will be printed. Example:
    LIB "bfun.lib";
    ring r = 0,x,dp;
    ideal I = x,2x;
    linSyzSolve(I);
    ==> gen(2)-2*gen(1)
    ideal J = x,x2;
    linSyzSolve(J);
    ==> 0

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