"Source: Text/LieTheory/GrpCox.text";
"Line: 737";
"Date: Wed Nov  6 12:03:34 2019";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/LieTheory/GrpCox.text, line: 737
// Example: H105E9 ()
print "Example: H105E9";
ei := GetEchoInput();
SetEchoInput(true);
R := StandardRootSystem("A", 4);
W := CoxeterGroup(R);
Rank(W);
assert $1 eq 4;
Dimension(W);
assert $1 eq 5;
SetEchoInput(ei);
