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diff --git a/src/util/unsat_core.cpp b/src/util/unsat_core.cpp
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+/*********************                                                        */
+/*! \file unsat_core.cpp
+ ** \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 unsat cores
+ **
+ ** Representation of unsat cores.
+ **/
+
+#include "util/unsat_core.h"
+#include "expr/command.h"
+
+namespace CVC4 {
+
+UnsatCore::const_iterator UnsatCore::begin() const {
+  return d_core.begin();
+}
+
+UnsatCore::const_iterator UnsatCore::end() const {
+  return d_core.end();
+}
+
+void UnsatCore::toStream(std::ostream& out) const {
+  for(UnsatCore::const_iterator i = begin(); i != end(); ++i) {
+    out << AssertCommand(*i) << std::endl;
+  }
+}
+
+std::ostream& operator<<(std::ostream& out, const UnsatCore& core) {
+  core.toStream(out);
+  return out;
+}
+
+}/* CVC4 namespace */