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diff --git a/src/expr/uninterpreted_constant.h b/src/expr/uninterpreted_constant.h
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+/*********************                                                        */
+/*! \file uninterpreted_constant.h
+ ** \verbatim
+ ** Original author: Morgan Deters
+ ** Major contributors: none
+ ** Minor contributors (to current version): none
+ ** This file is part of the CVC4 project.
+ ** Copyright (c) 2009-2014  New York University and The University of Iowa
+ ** See the file COPYING in the top-level source directory for licensing
+ ** information.\endverbatim
+ **
+ ** \brief Representation of constants of uninterpreted sorts
+ **
+ ** Representation of constants of uninterpreted sorts.
+ **/
+
+#include "cvc4_public.h"
+
+#pragma once
+
+#include "expr/type.h"
+#include <iostream>
+
+namespace CVC4 {
+
+class CVC4_PUBLIC UninterpretedConstant {
+  const Type d_type;
+  const Integer d_index;
+
+public:
+
+  UninterpretedConstant(Type type, Integer index) throw(IllegalArgumentException) :
+    d_type(type),
+    d_index(index) {
+    //CheckArgument(type.isSort(), type, "uninterpreted constants can only be created for uninterpreted sorts, not `%s'", type.toString().c_str());
+    CheckArgument(index >= 0, index, "index >= 0 required for uninterpreted constant index, not `%s'", index.toString().c_str());
+  }
+
+  ~UninterpretedConstant() throw() {
+  }
+
+  Type getType() const throw() {
+    return d_type;
+  }
+  const Integer& getIndex() const throw() {
+    return d_index;
+  }
+
+  bool operator==(const UninterpretedConstant& uc) const throw() {
+    return d_type == uc.d_type && d_index == uc.d_index;
+  }
+  bool operator!=(const UninterpretedConstant& uc) const throw() {
+    return !(*this == uc);
+  }
+
+  bool operator<(const UninterpretedConstant& uc) const throw() {
+    return d_type < uc.d_type ||
+           (d_type == uc.d_type && d_index < uc.d_index);
+  }
+  bool operator<=(const UninterpretedConstant& uc) const throw() {
+    return d_type < uc.d_type ||
+           (d_type == uc.d_type && d_index <= uc.d_index);
+  }
+  bool operator>(const UninterpretedConstant& uc) const throw() {
+    return !(*this <= uc);
+  }
+  bool operator>=(const UninterpretedConstant& uc) const throw() {
+    return !(*this < uc);
+  }
+
+};/* class UninterpretedConstant */
+
+std::ostream& operator<<(std::ostream& out, const UninterpretedConstant& uc) CVC4_PUBLIC;
+
+/**
+ * Hash function for the BitVector constants.
+ */
+struct CVC4_PUBLIC UninterpretedConstantHashFunction {
+  inline size_t operator()(const UninterpretedConstant& uc) const {
+    return TypeHashFunction()(uc.getType()) * IntegerHashFunction()(uc.getIndex());
+  }
+};/* struct UninterpretedConstantHashFunction */
+
+}/* CVC4 namespace */