|- !P B. RES_FORALL P B = (!x. P x ==> B x)
|- !P B. RES_EXISTS P B = (?x. P x /\ B x)
|- !P B. RES_SELECT P B = (@x. P x /\ B x)
|- ARB = (@x. T)
|- !P B. RES_ABSTRACT P B = (\x. (P x) => (B x) | ARB)