diff --git a/src/matrix/core.clj b/src/matrix/core.clj
index 0fc2393..6fe6354 100644
--- a/src/matrix/core.clj
+++ b/src/matrix/core.clj
@@ -134,10 +134,11 @@
    ((comp println #(pretty-matrix % add-bar)) m)
    m))
 
-(defn swap [n m] #(swap-rows % n m))
-(defn add [from to] #(add-rows % from to))
+;; repl commands
+(defn swap    [n m]       #(swap-rows % n m))
+(defn add     [from to]   #(add-rows % from to))
 (defn add-mul [n from to] #(add-rows-with-mul % n from to))
-(defn mul [n at] #(mul-row % n at))
+(defn mul     [n at]      #(mul-row % n at))
 
 (defn apply-input
   [m]