"Source: Text/Aggregates/Seq.text";
"Line: 1658";
"Date: Thu Sep 25 14:47:47 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Aggregates/Seq.text, line: 1658
// Example: H11E7 ()
print "Example: H11E7";
ei := GetEchoInput();
SetEchoInput(true);
letters := Eltseq("abc");
[ <i, x> : i -> x in letters ];
for i -> x in letters do
    printf "letters[%o] is %o\n", i, x;
end for;
S := [ 7, 3 ];
S[5] := 2;
S;
[ i : i -> _ in S ];
SetEchoInput(ei);
