"Source: Text/Incidence/AlgSym.text";
"Line: 404";
"Date: Fri Sep 26 12:10:10 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Incidence/AlgSym.text, line: 404
// Example: H159E2 ()
print "Example: H159E2";
ei := GetEchoInput();
SetEchoInput(true);
R := Rationals();
S := SymmetricFunctionAlgebraSchur(R);
E := SymmetricFunctionAlgebra(R : Basis := "Elementary");
f1 := S.[2,1];
f1;

f2 := E ! f1;
f2;
f1 eq f2;
assert $1;

P<x,y,z> := PolynomialRing(R, 3);
P ! f1;
P ! f2;
SetEchoInput(ei);
