"Source: Text/Group/GrpAtc.text";
"Line: 1363";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Group/GrpAtc.text, line: 1363
// Example: H84E12 ()
print "Example: H84E12";
ei := GetEchoInput();
SetEchoInput(true);
F<x, y, z>:= FreeGroup(3);
red:= [];
green:= [(x*y*z)^2];
ish, dehn, D1, D2 := IsHyperbolic(F, red, green); 
ish, dehn;
SetEchoInput(ei);
