theorem
  T = 11 implies JumpParts T = {{}}
proof
  assume
A1: T = 11;
  hereby
    let x be object;
    assume x in JumpParts T;
     then consider I being Instruction of SCM+FSA such that
A2:   x = JumpPart I and
A3:  InsCode I = T;
     consider a,f such that
A4:   I = a:=len f by A1,A3,SCMFSA_2:40;
     x = {} by A2,A4;
    hence x in {{}} by TARSKI:def 1;
  end;
  set a = the Int-Location, f = the FinSeq-Location;
  let x be object;
  assume x in {{}};
   then x = {} by TARSKI:def 1;
   then
A5:  x = JumpPart(a:=len f);
    InsCode(a:=len f) = 11;
  hence thesis by A5,A1;
end;
