"Source: Text/Geometry/Scheme.text";
"Line: 6183";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/Scheme.text, line: 6183
// Example: H122E45 ()
print "Example: H122E45";
ei := GetEchoInput();
SetEchoInput(true);
P<w,x,y,z> := ProjectiveSpace(Rationals(),3);
f := map< P -> P | [1/w,1/x,1/y,1/z] >;
f12 := RestrictionToPatch(f,1,2);
f12;
ProjectiveClosure(f12);
ProjectiveClosure(f12) eq f;
assert $1;
SetEchoInput(ei);
