It was known that every set A in P/poly has an advice function in PF(S
igma(2)(P)(A)). This paper shows that A also has an advice function in
PF(NP(A)+Sigma(3)(P)). From this new bound, it is shown that separati
ng Delta(2)(P) and Sigma(2)(P) relative to a set in P/poly is as hard
as obtaining the same separation, unrelativized. (C) 1995 Academic Pre
ss,Inc.