"Source: Text/Group/Grp.text";
"Line: 1686";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Group/Grp.text, line: 1686
// Example: H64E14 ()
print "Example: H64E14";
ei := GetEchoInput();
SetEchoInput(true);
M := SymplecticGroup(2, 4);
#M;
assert $1 eq 60;
Ms := sub< M | M.1 * M.2 >;
Index(M, Ms);        
assert $1 eq 12;
PG := CosetImage(M, Ms);
PG;
#PG;
assert $1 eq 60;
SetEchoInput(ei);
