let i be Element of SCMPDS-Instr ; ( ( InsCode i = 4 or InsCode i = 5 or InsCode i = 6 or InsCode i = 7 or InsCode i = 8 ) implies JumpPart i = {} )
assume
( InsCode i = 4 or InsCode i = 5 or InsCode i = 6 or InsCode i = 7 or InsCode i = 8 )
; JumpPart i = {}
then
i in { [I,{},<*v,c1,c2*>] where I is Element of Segm 15, v is Element of SCM-Data-Loc , c1, c2 is Element of INT : I in {4,5,6,7,8} }
by Th8;
then
ex I being Element of Segm 15 ex v being Element of SCM-Data-Loc ex c1, c2 being Element of INT st
( i = [I,{},<*v,c1,c2*>] & I in {4,5,6,7,8} )
;
hence
JumpPart i = {}
by RECDEF_2:def 2; verum