Re: Need help using math in markup command definition, and a feature request.

[Werner LEMBERG]

> BTW, I suggest to cover one more issue with local variables, namely
> whether arguments to a function are seen in sub-functions, which are
> IMHO a very good addition to `let` and `let*` to write clean and
> readable code – often much more readable than anonymous lambda
> expressions.
> 
> Example:

D'oh, this should be

```
(define (foo bar)
  (define (baz)
    ...
    (if bar)        ; Is 'bar' visible here?  If yes, when is
      ...           ; 'bar' expanded?  At the time 'baz' is
                    ; defined? At the time 'baz' is executed?
```


    Werner