theorem :: TWOSCOMP:20

( and3b . <*0,0,0*> = 0 & and3b . <*0,0,1*> = 1 & and3b . <*0,1,0*> = 0 & and3b . <*0,1,1*> = 0 & and3b . <*1,0,0*> = 0 & and3b . <*1,0,1*> = 0 & and3b . <*1,1,0*> = 0 & and3b . <*1,1,1*> = 0 )