let a be Int-Location ; :: thesis: for i being Instruction of SCM+FSA st i = a :==1 holds
UsedIntLoc i = {a}

let i be Instruction of SCM+FSA; :: thesis: ( i = a :==1 implies UsedIntLoc i = {a} )
a in Int-Locations by SCMFSA_2:9;
then {a} c= Int-Locations by ZFMISC_1:37;
then reconsider ab = {a} as Element of Fin Int-Locations by FINSUB_1:def 5;
assume A1: i = a :==1 ; :: thesis: UsedIntLoc i = {a}
then InsCode i = 13 by SCMFSA_2:137;
then UsedIntLoc i = ab by A1, Def1;
hence UsedIntLoc i = {a} ; :: thesis: verum