let f be FinSeq-Location ; for a being Int-Location
for s being State of SCM+FSA holds {a,(IC SCM+FSA ),f} c= dom s
let a be Int-Location ; for s being State of SCM+FSA holds {a,(IC SCM+FSA ),f} c= dom s
let s be State of SCM+FSA ; {a,(IC SCM+FSA ),f} c= dom s
A1:
a in dom s
by SCMFSA_2:66;
IC SCM+FSA in dom s
by SCMFSA8B:1;
then A2:
{a,(IC SCM+FSA )} c= dom s
by A1, ZFMISC_1:38;
f in dom s
by SCMFSA_2:67;
then
{f} c= dom s
by ZFMISC_1:37;
then
{a,(IC SCM+FSA )} \/ {f} c= dom s
by A2, XBOOLE_1:8;
hence
{a,(IC SCM+FSA ),f} c= dom s
by ENUMSET1:43; verum