"Source: Text/Group/GrpAtc.text";
"Line: 1383";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Group/GrpAtc.text, line: 1383
// Example: H84E13 ()
print "Example: H84E13";
ei := GetEchoInput();
SetEchoInput(true);
F<a, b, c>:= FreeGroup(3);
G:= quo<F | a^5, (b*c)^7>;
ish, dehn, L1, L2 := IsHyperbolic(F, [], Relators(G));
ish, dehn;
SetEchoInput(ei);
