"Source: Text/Basics/RngIntRes.text";
"Line: 279";
"Date: Thu Sep 25 14:47:46 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Basics/RngIntRes.text, line: 279
// Example: H20E2 ()
print "Example: H20E2";
ei := GetEchoInput();
SetEchoInput(true);
p := PreviousPrime(2^16);
p;
assert $1 eq 65521;
R := ResidueClassRing(p);
exists(t){x : x in R | x^3 eq 23};
assert $1;
t;
assert $1 eq 12697;
SetEchoInput(ei);
