"Source: Text/LieTheory/Cartan.text";
"Line: 817";
"Date: Fri Sep 26 12:10:11 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/LieTheory/Cartan.text, line: 817
// Example: H105E11 ()
print "Example: H105E11";
ei := GetEchoInput();
SetEchoInput(true);
IsCoxeterAffine("A~2");
assert $1;
IsCoxeterAffine("A~2B2");
assert $1;
IsCoxeterAffine("A2B2");
assert not $1;
IsCoxeterFinite("A2B2");
assert $1;
SetEchoInput(ei);
