theorem :: GFACIRC1:104

for x, y, z being set st z <> [<*x,y*>,xor2c] & x <> [<*y,z*>,and2c] & y <> [<*z,x*>,nor2] & z <> [<*x,y*>,and2a] holds
for s being State of (BitGFA2Circ (x,y,z)) holds Following (s,2) is stable