diff --git a/after/syntax/ats.vim b/after/syntax/ats.vim
new file mode 100644
index 0000000..48210e7
--- /dev/null
+++ b/after/syntax/ats.vim
@@ -0,0 +1,11 @@
+scriptencoding utf-8
+
+syntax match logicalAnd '&&' conceal cchar=∧
+syntax match leq '<=' conceal cchar=≤
+syntax match geq '>=' conceal cchar=≥
+syntax match logicalOr '||' conceal cchar=∨
+
+" FIXME boring white?
+hi! link Conceal Keyword
+
+setlocal conceallevel=1