Definitions | ff, Rplus?(x1), Rnone?(x1), b, if b then t else f fi , A c B, A, @i: A, , case(R)Rnone: noneleft right: comb(left;right)base(b). base(b), P & Q, True,  x. t(x), [[R]], Dsys, t T, R-Feasible(R), R-size(R), P  Q, x:A. B(x), False,  , x(s), Unit, Realizer, left right, , Rrframe(loc;x;L), Rbframe(loc;k;L), Raframe(loc;k;L), Rpre(loc;ds;a;p;P), Rsends(ds;knd;T;l;dt;g), Reffect(loc;ds;knd;T;x;f), Rsframe(lnk;tag;L), Rframe(loc;T;x;L), Rinit(loc;T;x;v), Rnone(),  |