diff --git a/pkgs/applications/science/logic/prover9/default.nix b/pkgs/applications/science/logic/prover9/default.nix
new file mode 100644
index 000000000000..b1890e646542
--- /dev/null
+++ b/pkgs/applications/science/logic/prover9/default.nix
@@ -0,0 +1,45 @@
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
+  name = "prover9";
+
+  src = fetchurl {
+    url = http://www.cs.unm.edu/~mccune/mace4/download/LADR-2009-11A.tar.gz;
+    sha256 = "1l2i3d3h5z7nnbzilb6z92r0rbx0kh6yaxn2c5qhn3000xcfsay3";
+  };
+
+  phases = "unpackPhase patchPhase buildPhase installPhase";
+
+  patchPhase = ''
+    RM=$(type -tp rm)
+    MV=$(type -tp mv)
+    CP=$(type -tp cp)
+    for f in Makefile */Makefile; do
+      substituteInPlace $f --replace "/bin/rm" "$RM" \
+        --replace "/bin/mv" "$MV" \
+        --replace "/bin/cp" "$CP";
+    done
+  '';
+
+  buildFlags = "all";
+
+  installPhase = ''
+    ensureDir $out/bin
+    cp bin/* $out/bin
+  '';
+
+  meta = {
+    homepage = "http://hol.sourceforge.net/";
+    license = "BSD";
+    description = "Prover9 is an automated theorem prover for first-order and equational logic."
+
+    longDescription = ''
+      Prover9 is a resolution/paramodulation automated theorem prover
+      for first-order and equational logic. Prover9 is a successor of
+      the Otter Prover. This is the LADR command-line version.
+    '';
+
+    platforms = stdenv.lib.platforms.unix;
+    maintainers = [];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5ab048b63207..28a9d1ec828b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6775,6 +6775,8 @@ let
     inherit (pkgs.emacs23Packages) proofgeneral;
   };
 
+  prover9 = callPackage ../applications/science/logic/prover9 { };
+
   ssreflect = callPackage ../applications/science/logic/ssreflect {
     camlp5 = camlp5_transitional;
   };