"Source: Text/Commut/RngDiff.text";
"Line: 442";
"Date: Thu Sep 25 14:47:46 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Commut/RngDiff.text, line: 442
// Example: H121E6 ()
print "Example: H121E6";
ei := GetEchoInput();
SetEchoInput(true);
S<t>:=DifferentialLaurentSeriesRing(Rationals());
UnderlyingRing(S);
ConstantRing(S);
Generators(S);
SetEchoInput(ei);
