"Source: Text/Geometry/ModAbVar.text";
"Line: 7134";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModAbVar.text, line: 7134
// Example: H148E101 ()
print "Example: H148E101";
ei := GetEchoInput();
SetEchoInput(true);
A := JZero(23);
phi := HeckeOperator(A,3) - 5;
G := Kernel(phi);
x := G.1;
Order(x);
assert $1 eq 10;
phi(x);
assert IsZero($1);
zero := A!0;
z := zero@@phi; z;
assert IsZero($1);
y := x@@phi; y;
phi(y) in G;
assert $1;
y@phi eq phi(y);
assert $1;
SetEchoInput(ei);
