diff --git a/Data/Nat.hs b/Data/Nat.hs
new file mode 100644
--- /dev/null
+++ b/Data/Nat.hs
@@ -0,0 +1,48 @@
+{-# LANGUAGE
+  UndecidableInstances, ScopedTypeVariables, DataKinds,
+  FlexibleInstances, GADTs, TypeFamilies, TemplateHaskell,
+  TypeOperators #-}
+
+module Data.Nat (
+    Nat(..)
+  , (Data.Nat.+)
+  , (Data.Nat.*)
+  , SNat
+  , (:*)
+  , (:*$)
+  , (:*$$)
+  , (:+)    
+  , (:+$)
+  , (:+$$)
+  , SSym0(..)
+  , SSym1(..)
+  , ZSym0(..)
+  , (%:+)
+  , (%:*)
+  , Lit
+  , SLit ) where
+
+import Data.Singletons.TH
+import Data.Singletons.Prelude
+import qualified GHC.TypeLits as Lit
+
+$(singletons [d|
+  data Nat = Z | S Nat deriving (Eq, Show, Ord)
+
+  (+) :: Nat -> Nat -> Nat
+  Z + b = b
+  S a + b = S (a + b)
+
+  (*) :: Nat -> Nat -> Nat
+  Z * b = Z
+  S a * b = b + (a * b) |])
+
+type family Lit n where
+  Lit 0 = Z
+  Lit n = S (Lit (n Lit.- 1))
+
+type SLit n = Sing (Lit n)
+
+
+
+
diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright (c) 2015, András Kovács
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of András Kovács nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/singleton-nats.cabal b/singleton-nats.cabal
new file mode 100644
--- /dev/null
+++ b/singleton-nats.cabal
@@ -0,0 +1,23 @@
+
+name:                singleton-nats
+version:             0.1.0.0
+synopsis:            Unary natural numbers relying on the singletons infrastructure.         
+license:             BSD3
+license-file:        LICENSE
+author:              András Kovács
+maintainer:          puttamalac@gmail.com
+copyright:           2015 András Kovács
+category:            Data
+build-type:          Simple
+
+cabal-version:       >=1.10
+
+library
+  exposed-modules:
+    Data.Nat
+
+  build-depends:       
+    base >=4.7 && <4.9,
+    singletons >= 1
+
+  default-language:    Haskell2010