Definitions | s = t, x:AB(x), x:A. B(x), type List, Type, map(f;as), tl(l), #$n, firstn(n;as), nth_tl(n;as), hd(l), f(a), x:A B(x), P & Q, t T, A List, {T}, P Q, , [], [car / cdr], n - m, if a<b then c else d, i <z j, case b of inl(x) => s(x) | inr(y) => t(y), if b then t else f fi , rec-case(a) of [] => s | x::y => z.t(x;y;z), x.A(x), Y, i z j, False, Void, , ||as||, n+m, A B, i j , {x:A| B(x)} , a < b, A |