feat(org): add new Org user entities

config.org

@@ -2947,10 +2947,15 @@ It's sometimes nice to be able to click a link in an Org file that takes me to o
 
 #+begin_src emacs-lisp
 (after! org
-  (setq org-pretty-entities t)
-  (pushnew! org-entities-user
-            '("top" "\\top" t "⊤" "" "22A4" "⊤")
-            '("bot" "\\bot" t "⊥" "" "22A5" "⊥")))
+  (setq org-pretty-entities t
+        org-entities-user
+        '(("top" "\\top" t "⊤" "" "22A4" "⊤")
+          ("bot" "\\bot" t "⊥" "" "22A5" "⊥")
+          ("bbN" "\\mathbb{N}" t "" "" "2115" "ℕ")
+          ("bbZ" "\\mathbb{Z}" t "" "" "2124" "ℤ")
+          ("bbQ" "\\mathbb{Q}" t "" "" "211A" "ℚ")
+          ("bbR" "\\mathbb{R}" t "" "" "211D" "ℝ")
+          ("qed" "\\square" t "" "" "25A0" "■"))))
 #+end_src
 
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