One-Sentence Function Definitions

If a function definition contains a single sentence Snt, i.e. has the form
    Fname \{ Snt; };
it can be abbreviated to
    Fname Snt;
For example, the above definition of the function SumSq can be rewritten as
SumSq  sX sY = <Add <Mult sX sX> <Mult sY sY>>;