let I be Program of SCM+FSA ; for f being FinSeq-Location
for l being Element of NAT holds not f in dom (I +* (Start-At l,SCM+FSA ))
let f be FinSeq-Location ; for l being Element of NAT holds not f in dom (I +* (Start-At l,SCM+FSA ))
let l be Element of NAT ; not f in dom (I +* (Start-At l,SCM+FSA ))
assume
f in dom (I +* (Start-At l,SCM+FSA ))
; contradiction
then
f in (dom I) \/ (dom (Start-At l,SCM+FSA ))
by FUNCT_4:def 1;
then A1:
( f in dom I or f in dom (Start-At l,SCM+FSA ) )
by XBOOLE_0:def 3;
( dom I c= NAT & f in FinSeq-Locations )
by RELAT_1:def 18, SCMFSA_2:10;
hence
contradiction
by A1, Th10, SCMFSA_2:14, XBOOLE_0:3; verum