let T be InsType of SCM-Instr; :: thesis: ( not not T = 1 & ... & not T = 5 implies JumpParts T = {{}} )
assume A1: not not T = 1 & ... & not T = 5 ; :: thesis: JumpParts T = {{}}

hereby :: according to TARSKI:def 3,XBOOLE_0:def 10 :: thesis: {{}} c= JumpParts T

let x be object ; :: thesis: ( x in JumpParts T implies x in {{}} )
assume x in JumpParts T ; :: thesis: x in {{}}
then consider I being Element of SCM-Instr such that
A2: x = JumpPart I and
A3: InsCode I = T ;
I in { [J,{},<*b,c*>] where J is Element of Segm 9, b, c is Element of SCM-Data-Loc : J in {1,2,3,4,5} } by A1, A3, Th9;
then consider J being Element of Segm 9, b, c being Element of SCM-Data-Loc such that
A4: I = [J,{},<*b,c*>] and
J in {1,2,3,4,5} ;
x = {} by A2, A4;
hence x in {{}} by TARSKI:def 1; :: thesis: verum

end;

set a = the Element of SCM-Data-Loc ;
let x be object ; :: according to TARSKI:def 3 :: thesis: ( not x in {{}} or x in JumpParts T )
assume x in {{}} ; :: thesis: x in JumpParts T
then A5: x = {} by TARSKI:def 1;
A6: JumpPart [T,{},<* the Element of SCM-Data-Loc , the Element of SCM-Data-Loc *>] = {} ;
A7: InsCode [T,{},<* the Element of SCM-Data-Loc , the Element of SCM-Data-Loc *>] = T ;
T in {1,2,3,4,5} by A1, ENUMSET1:def 3;
then [T,{},<* the Element of SCM-Data-Loc , the Element of SCM-Data-Loc *>] in SCM-Instr by Th4;
hence x in JumpParts T by A5, A6, A7; :: thesis: verum