Dear David and GAP-forum,

I think you have your meaning of x wrong:

gap> R := PolynomialRing(Rationals,["x"]);
PolynomialRing(..., [ x ])
gap> x := IndeterminatesOfPolynomialRing(R)[1];
x
gap> f := x^2+1;
1+x^2
gap> f in R;
true

Robert F. Morse

On Sun, 2003-08-10 at 10:36, David Joyner wrote:
> Hello GAP Forum:
> 
> A minor question about the "in" command.
> 
> Why doesn't
> 
> gap> R := PolynomialRing(Rationals,["x"]);
> PolynomialRing(..., [ x ])
> gap>
> gap> f:=x^2+1;                            
> 1+x^2
> gap> f in R;
> false
> 
> return "true"? Am I using the "in" command wrong?
> 
> - David
> 
>