Usefulness of the "not in" operator

[Alexander Kapps]

On 09.10.2011 01:35, Tim Roberts wrote:
> Roy Smith<roy at panix.com>  wrote:
>> In article<4e906108$0$27980$426a34cc at news.free.fr>,
>> candide<candide at free.invalid>  wrote:
>>
>>> After browsing source code, I realize that parenthesis are not necessary
>>> ("not" has higher precedence than "in").
>>
>> Here's my take on parenthesis:  If you need to look up whether they're
>> necessary or not, they are :-)
>
> Amen.  +1

So LISP (Lots of Irritating Superfluous Parentheses) was right all 
the time and is now finally vindicated? ;-)