Add a couple cells to lisp-prettify-symbols-alist

* lisp/emacs-lisp/lisp-mode.el (lisp-prettify-symbols-alist): Add
"sqrt" and "not".

diff --git a/lisp/emacs-lisp/lisp-mode.el b/lisp/emacs-lisp/lisp-mode.el
index a277d7a6680a53f82925be1b98b7e8bd975c33b1..ee3bda95b841557c3abd3afffabb317cedf4ff8f 100644 (file)
--- a/lisp/emacs-lisp/lisp-mode.el
+++ b/lisp/emacs-lisp/lisp-mode.el
@@ -168,7 +168,10 @@
 (defvar lisp-doc-string-elt-property 'doc-string-elt
   "The symbol property that holds the docstring position info.")
 
-(defconst lisp-prettify-symbols-alist '(("lambda"  . ?λ))
+(defconst lisp-prettify-symbols-alist
+  '(("lambda" . ?λ)
+    ("sqrt" . ?√)
+    ("not" . ?¬))
   "Alist of symbol/\"pretty\" characters to be displayed.")
 
 ;;;; Font-lock support.