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diff --git a/src/proof/array_proof.h b/src/proof/array_proof.h
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--- a/src/proof/array_proof.h
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@@ -1,121 +0,0 @@
-/*********************                                                        */
-/*! \file array_proof.h
- ** \verbatim
- ** Top contributors (to current version):
- **   Tim King, Mathias Preiner, Guy Katz
- ** 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 Arrray proof
- **
- ** Arrau proof
- **/
-
-#include "cvc4_private.h"
-
-#ifndef CVC4__ARRAY__PROOF_H
-#define CVC4__ARRAY__PROOF_H
-
-#include <memory>
-#include <unordered_set>
-
-#include "expr/expr.h"
-#include "proof/proof_manager.h"
-#include "proof/theory_proof.h"
-#include "theory/arrays/theory_arrays.h"
-#include "theory/uf/equality_engine.h"
-
-namespace CVC4 {
-
-// Proof object outputted by TheoryARRAY.
-class ProofArray : public Proof {
- public:
-  ProofArray(std::shared_ptr<theory::eq::EqProof> pf, unsigned row,
-             unsigned row1, unsigned ext);
-
-  void registerSkolem(Node equality, Node skolem);
-
-  void toStream(std::ostream& out) const override;
-  void toStream(std::ostream& out, const ProofLetMap& map) const override;
-
- private:
-  void toStreamLFSC(std::ostream& out,
-                    TheoryProof* tp,
-                    const theory::eq::EqProof& pf,
-                    const ProofLetMap& map) const;
-
-  Node toStreamRecLFSC(std::ostream& out,
-                       TheoryProof* tp,
-                       const theory::eq::EqProof& pf,
-                       unsigned tb,
-                       const ProofLetMap& map) const;
-
-  // It is simply an equality engine proof.
-  std::shared_ptr<theory::eq::EqProof> d_proof;
-
-  /** Merge tag for ROW applications */
-  unsigned d_reasonRow;
-  /** Merge tag for ROW1 applications */
-  unsigned d_reasonRow1;
-  /** Merge tag for EXT applications */
-  unsigned d_reasonExt;
-};
-
-namespace theory {
-namespace arrays{
-class TheoryArrays;
-} /* namespace CVC4::theory::arrays */
-} /* namespace CVC4::theory */
-
-typedef std::unordered_set<Type, TypeHashFunction > TypeSet;
-
-class ArrayProof : public TheoryProof {
-  // TODO: whatever goes in this theory
-protected:
-  TypeSet d_sorts;        // all the uninterpreted sorts in this theory
-  ExprSet d_declarations; // all the variable/function declarations
-  ExprSet d_skolemDeclarations; // all the skolem variable declarations
-  std::map<Expr, std::string> d_skolemToLiteral;
-  theory::TheoryId getTheoryId() override;
-
- public:
-  ArrayProof(theory::arrays::TheoryArrays* arrays, TheoryProofEngine* proofEngine);
-
-  std::string skolemToLiteral(Expr skolem);
-
-  void registerTerm(Expr term) override;
-};
-
-class LFSCArrayProof : public ArrayProof {
-public:
-  LFSCArrayProof(theory::arrays::TheoryArrays* arrays, TheoryProofEngine* proofEngine)
-    : ArrayProof(arrays, proofEngine)
-  {}
-
-  void printOwnedTermAsType(Expr term,
-                            std::ostream& os,
-                            const ProofLetMap& map,
-                            TypeNode expectedType) override;
-  void printOwnedSort(Type type, std::ostream& os) override;
-  void printTheoryLemmaProof(std::vector<Expr>& lemma,
-                             std::ostream& os,
-                             std::ostream& paren,
-                             const ProofLetMap& map) override;
-  void printSortDeclarations(std::ostream& os, std::ostream& paren) override;
-  void printTermDeclarations(std::ostream& os, std::ostream& paren) override;
-  void printDeferredDeclarations(std::ostream& os,
-                                 std::ostream& paren) override;
-  void printAliasingDeclarations(std::ostream& os,
-                                 std::ostream& paren,
-                                 const ProofLetMap& globalLetMap) override;
-
-  bool printsAsBool(const Node& n) override;
-};
-
-
-}/* CVC4 namespace */
-
-#endif /* CVC4__ARRAY__PROOF_H */