Re: ¬ notation for not? Ref: Add a couple cells to lisp-prettify-symbols-alist

[Eli Zaretskii]

> From: Andreas Röhler <address@hidden>
> Date: Sun, 10 Jul 2016 15:31:56 +0200
> 
> Hi Mark,
> 
> while your initiative is appreciated, AFAIK these symbols are not that 
> canonic.
> 
> Implementing in core might draw subsequent requests suggesting the one 
> or the other symbols instead, IMO keeping the pretty-print stuff in 
> specialized packages is recommendable.

It's an optional feature:

  emacs -Q
  M-: prettify-symbols-mode RET => nil