let a be Int-Location ; :: thesis: for l being Element of NAT
for i being Instruction of SCM+FSA st ( i = a =0_goto l or i = a >0_goto l ) holds
UsedIntLoc i = {a}
let l be Element of NAT ; :: thesis: for i being Instruction of SCM+FSA st ( i = a =0_goto l or i = a >0_goto l ) holds
UsedIntLoc i = {a}
let i be Instruction of SCM+FSA; :: thesis: ( ( i = a =0_goto l or i = a >0_goto l ) implies UsedIntLoc i = {a} )
a in Int-Locations by SCMFSA_2:2;
then {a} c= Int-Locations by ZFMISC_1:31;
then reconsider ab = {a} as Element of Fin Int-Locations by FINSUB_1:def 5;
assume A1: ( i = a =0_goto l or i = a >0_goto l ) ; :: thesis: UsedIntLoc i = {a}
then ( InsCode i = 7 or InsCode i = 8 ) by SCMFSA_2:24, SCMFSA_2:25;
then UsedIntLoc i = ab by A1, Def1;
hence UsedIntLoc i = {a} ; :: thesis: verum