On 2016-07-10 06:44, Kaushal Modi wrote: > Should these notations be instead suggested in the doc-string of > lisp-prettify-symbols-alist? People interested to see these notations > can then add that to their personal configs. I use ¬ pretty commonly at work, but I'm not sure how well it works for Lisp: ¬ is a logical not, but lisp's ‘not’ is a bit more general (¬ t) looks quite fine, but (¬ 1) looks like a type error to me, whereas (not 1) is fine :) Stefan, maybe that's why you're more comfortable with that symbol in OCaml? In any case, I'd vote in favor of reverting, and adding a suggestion to the docstring. Clément.