Add narrow emptyset symbol

mkorje · mkorje · commit 56686b0fd8ee · 2026-01-25T17:47:51.000+11:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,8 @@
 ### New in `sym`
 
 - Mathematical symbols
+  - `emptyset.zero`: ∅︀
+  - `nothing.zero`: ∅︀
   - `union.serif`: ∪︀
   - `union.sq.serif`: ⊔︀
   - `inter.serif`: ∩︀
diff --git a/src/modules/sym.txt b/src/modules/sym.txt
@@ -401,12 +401,14 @@ asymp ≍
 
 // Set theory.
 emptyset ∅
+  .zero ∅\vs{1}
   .arrow.r ⦳
   .arrow.l ⦴
   .bar ⦱
   .circle ⦲
   .rev ⦰
 nothing ∅
+  .zero ∅\vs{1}
   .arrow.r ⦳
   .arrow.l ⦴
   .bar ⦱
