diff --git a/Math/Arithmatic.hs b/Math/Arithmatic.hs
new file mode 100644
--- /dev/null
+++ b/Math/Arithmatic.hs
@@ -0,0 +1,24 @@
+module Math.Arithmatic where
+
+{-# LANGUAGE NoMonomorphismRestriction #-}
+
+inc = (+1)
+dec = (subtract 1)
+
+add 0 b = b
+add a b = add (dec a) (inc b)
+
+multiply _ 0 = 0
+multiply a b = add a (multiply a (dec b))
+
+division _ 0 = error "divide by zero error"
+division a 1 = 1
+division a n | a > 0 = 1 + division (a-n) n
+             | otherwise = 0 
+
+power a 0 = 1
+power a b = multiply a (power a (dec b))
+
+logarithm _ 0 = 1
+logarithm _ 1 = 0
+logarithm base number = 1 + logarithm base (division number base)
diff --git a/arithmatic.cabal b/arithmatic.cabal
--- a/arithmatic.cabal
+++ b/arithmatic.cabal
@@ -1,5 +1,5 @@
 name: arithmatic
-version: 0.1.0.2
+version: 0.1.0.3
 synopsis: do things with numbers
 description: a library which implements arithmatic functions
 cabal-version: >=1.10
@@ -19,5 +19,6 @@
 library
     build-depends: base < 10000
     default-language: Haskell2010
+    exposed-modules: Math.Arithmatic