occur to me that anyone would take what I said
     as a strict definition of anything, since it was intended
     more as a way of building relations among constructs that
     are either primitive or else already sufficiently defined.
     First of all, we already have a good enough definition of
     the sign relation -- I personally consider the one in L75
     to be the most clear, detailed, explicit, and formalized
     of them all -- and this defines all of the roles O, S, I
     simultaneously in re