"Source: Text/Basics/FldForms.text";
"Line: 518";
"Date: Thu Sep 25 14:47:46 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Basics/FldForms.text, line: 518
// Example: H30E5 ()
print "Example: H30E5";
ei := GetEchoInput();
SetEchoInput(true);
Q := StandardQuadraticForm(6,4 : Minus);
V := QuadraticSpace(Q);
WittIndex(V);
H := HyperbolicSplitting(V);
W := sub< V | H[2] >;
HasSingularVector(W);
assert not $1;
HasIsotropicVector(W);
assert $1;
SetEchoInput(ei);
