for S1, S2, S being non empty non void Circuit-like ManySortedSign st InputVertices S1 misses InnerVertices S2 & S = S1 +* S2 holds
for A1 being non-empty Circuit of S1
for A2 being non-empty Circuit of S2
for A being non-empty Circuit of S st A1 tolerates A2 & A = A1 +* A2 holds
for n1, n2 being Nat
for s being State of A
for s1 being State of A1
for s2 being State of A2 st s1 = s | the carrier of S1 & Following (s1,n1) is stable & s2 = (Following (s,n1)) | the carrier of S2 & Following (s2,n2) is stable holds
Following (s,(n1 + n2)) is stable