"Source: Text/Incidence/Design.text";
"Line: 943";
"Date: Fri Sep 26 12:10:10 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Incidence/Design.text, line: 943
// Example: H160E5 ()
print "Example: H160E5";
ei := GetEchoInput();
SetEchoInput(true);
Z11 := IntegerRing(11);
B := { Z11 | 1, 3, 4, 5, 9};
IsDifferenceSet(B);
D := Development(B);
D: Maximal;
B := DifferenceSet(17, "T");
D := Development(B);
D;
SetEchoInput(ei);
