theorem :: FACIRC_1:82

for x, y, c being non pair object
for s being State of (MajorityCirc (x,y,c))
for a1, a3 being Element of BOOLEAN st a1 = s . x & a3 = s . c holds
(Following (s,2)) . [<*c,x*>,'&'] = a3 '&' a1