Block explicit return

> Page 55
>
> "The block answers the value of the last expression in its body,
> unless there is an explicit return (with ↑), in which case it does not answer
> any value."
>
> "...in which case it answers with the expression following the ↑, as usual."
>
> [3 + 4] value -> 7
> [3 + 4. ^5] value ->5