diff --git a/vim/snippets/custom/snippets/markdown.snippets b/vim/snippets/custom/snippets/markdown.snippets
index 58196c1..ac3b9ca 100644
--- a/vim/snippets/custom/snippets/markdown.snippets
+++ b/vim/snippets/custom/snippets/markdown.snippets
@@ -26,6 +26,12 @@ snippet eps
 	\varepsilon 
 snippet to
 	\to 
+snippet ss
+	\subset 
+snippet sse
+	\subseteq 
+snippet sm
+	\setminus 
 snippet toi
 	( ${1} \to\infty)
 snippet q
@@ -40,6 +46,8 @@ snippet =>
 	\Rightarrow 
 snippet o=
 	\overset{${1}}{=}
+snippet o=>
+	\overset{${1}}{\Rightarrow}
 snippet sqrt
 	\sqrt[${1:2}]{${2}}
 snippet qfa