"Source: Text/Geometry/Polyhedra.text";
"Line: 1232";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/Polyhedra.text, line: 1232
// Example: H156E5 ()
print "Example: H156E5";
ei := GetEchoInput();
SetEchoInput(true);
P:=RandomPolytope(3,3,4) / 2;
P;
Q:=P * RandomGLnZ(3,3,3);
Q;
bool,phi:=IsIsomorphic(P,Q);
bool;
assert $1;
Image(phi,P) eq Q;
assert $1;
M:=DefiningMatrix(phi);
M;
P * M eq Q;
assert $1;
SetEchoInput(ei);
