"Source: Text/Geometry/Polyhedra.text";
"Line: 2151";
"Date: Mon Aug 27 15:44:26 2018";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/Geometry/Polyhedra.text, line: 2151
// Example: H152E17 ()
print "Example: H152E17";
ei := GetEchoInput();
SetEchoInput(true);
L := ToricLattice(2);
L;
M := Dual(L);
M;
M eq L;
assert not $1;
L eq Dual(M);
assert $1;
SetEchoInput(ei);
