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diff --git a/src/proof/uf_proof.h b/src/proof/uf_proof.h
deleted file mode 100644
index 647359a87..000000000
--- a/src/proof/uf_proof.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/*********************                                                        */
-/*! \file uf_proof.h
- ** \verbatim
- ** Top contributors (to current version):
- **   Mathias Preiner, Liana Hadarean, Tim King
- ** 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 UF proof
- **
- ** UF proof
- **/
-
-#include "cvc4_private.h"
-
-#ifndef CVC4__UF__PROOF_H
-#define CVC4__UF__PROOF_H
-
-#include <memory>
-#include <unordered_set>
-
-#include "expr/expr.h"
-#include "proof/theory_proof.h"
-#include "theory/uf/equality_engine.h"
-#include "util/proof.h"
-
-namespace CVC4 {
-
-// proof object outputted by TheoryUF
-class ProofUF : public Proof
-{
- public:
-  ProofUF(std::shared_ptr<theory::eq::EqProof> pf) : d_proof(pf) {}
-  void toStream(std::ostream& out) const override;
-  void toStream(std::ostream& out, const ProofLetMap& map) const override;
-
- private:
-  static void toStreamLFSC(std::ostream& out, TheoryProof* tp,
-                           const theory::eq::EqProof& pf,
-                           const ProofLetMap& map);
-  static Node toStreamRecLFSC(std::ostream& out, TheoryProof* tp,
-                              const theory::eq::EqProof& pf, unsigned tb,
-                              const ProofLetMap& map);
-
-  // it is simply an equality engine proof
-  std::shared_ptr<theory::eq::EqProof> d_proof;
-};
-
-namespace theory {
-namespace uf {
-class TheoryUF;
-}
-}
-
-typedef std::unordered_set<Type, TypeHashFunction > TypeSet;
-
-
-class UFProof : public TheoryProof {
-protected:
-  TypeSet d_sorts;        // all the uninterpreted sorts in this theory
-  ExprSet d_declarations; // all the variable/function declarations
-  theory::TheoryId getTheoryId() override;
-
- public:
-  UFProof(theory::uf::TheoryUF* uf, TheoryProofEngine* proofEngine);
-
-  void registerTerm(Expr term) override;
-};
-
-class LFSCUFProof : public UFProof {
-public:
-  LFSCUFProof(theory::uf::TheoryUF* uf, TheoryProofEngine* proofEngine)
-    : UFProof(uf, 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;
-
-  void printConstantDisequalityProof(std::ostream& os,
-                                     Expr c1,
-                                     Expr c2,
-                                     const ProofLetMap& globalLetMap) override;
-};
-
-
-}/* CVC4 namespace */
-
-#endif /* CVC4__UF__PROOF_H */