2 files changed, 92 insertions, 0 deletions
diff --git a/src/theory/quantifiers/instantiation_list.cpp b/src/theory/quantifiers/instantiation_list.cpp
new file mode 100644
index 000000000..4bf17ebc2
--- /dev/null
+++ b/src/theory/quantifiers/instantiation_list.cpp
@@ -0,0 +1,34 @@
+/*********************                                                        */
+/*! \file instantiation_list.cpp
+ ** \verbatim
+ ** Top contributors (to current version):
+ **   Andrew Reynolds
+ ** This file is part of the CVC4 project.
+ ** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
+ ** in the top-level source directory and their institutional affiliations.
+ ** All rights reserved.  See the file COPYING in the top-level source
+ ** directory for licensing information.\endverbatim
+ **
+ ** \brief list of instantiations
+ **/
+
+#include "theory/quantifiers/instantiation_list.h"
+
+#include "options/base_options.h"
+#include "printer/printer.h"
+
+namespace CVC4 {
+
+std::ostream& operator<<(std::ostream& out, const InstantiationList& ilist)
+{
+  Printer::getPrinter(options::outputLanguage())->toStream(out, ilist);
+  return out;
+}
+
+std::ostream& operator<<(std::ostream& out, const SkolemList& skl)
+{
+  Printer::getPrinter(options::outputLanguage())->toStream(out, skl);
+  return out;
+}
+
+}  // namespace CVC4
diff --git a/src/theory/quantifiers/instantiation_list.h b/src/theory/quantifiers/instantiation_list.h
new file mode 100644
index 000000000..6ef8e4784
--- /dev/null
+++ b/src/theory/quantifiers/instantiation_list.h
@@ -0,0 +1,58 @@
+/*********************                                                        */
+/*! \file instantiation_list.h
+ ** \verbatim
+ ** Top contributors (to current version):
+ **   Andrew Reynolds
+ ** This file is part of the CVC4 project.
+ ** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
+ ** in the top-level source directory and their institutional affiliations.
+ ** All rights reserved.  See the file COPYING in the top-level source
+ ** directory for licensing information.\endverbatim
+ **
+ ** \brief list of instantiations
+ **/
+
+#include "cvc4_private.h"
+
+#ifndef CVC4__THEORY__QUANTIFIERS__INSTANTIATION_LIST_H
+#define CVC4__THEORY__QUANTIFIERS__INSTANTIATION_LIST_H
+
+#include <iosfwd>
+#include <vector>
+
+#include "expr/node.h"
+
+namespace CVC4 {
+
+/** A list of instantiations for a quantified formula */
+struct InstantiationList
+{
+  InstantiationList(Node q, const std::vector<std::vector<Node> >& inst)
+      : d_quant(q), d_inst(inst)
+  {
+  }
+  /** The quantified formula */
+  Node d_quant;
+  /** The instantiation list */
+  std::vector<std::vector<Node> > d_inst;
+};
+
+/** Print the instantiation list to stream out */
+std::ostream& operator<<(std::ostream& out, const InstantiationList& ilist);
+
+/** The list of skolemization for a quantified formula */
+struct SkolemList
+{
+  SkolemList(Node q, const std::vector<Node>& sks) : d_quant(q), d_sks(sks) {}
+  /** The quantified formula */
+  Node d_quant;
+  /** The list of skolems for the quantified formula */
+  std::vector<Node> d_sks;
+};
+
+/** Print the skolem list to stream out */
+std::ostream& operator<<(std::ostream& out, const SkolemList& skl);
+
+}  // namespace CVC4
+
+#endif /* CVC4__THEORY__QUANTIFIERS__INSTANTIATION_LIST_H */