"Source: Text/Incidence/AlgSym.text";
"Line: 1780";
"Date: Wed Jun 28 17:27:41 2017";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/Incidence/AlgSym.text, line: 1780
// Example: H155E24 ()
print "Example: H155E24";
ei := GetEchoInput();
SetEchoInput(true);
IsSymmetric(ElementaryToMonomialMatrix(7));
assert $1;
SetEchoInput(ei);
