mv util/lp to math/lp

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

src/math/lp/factorization_factory_imp.h

@@ -0,0 +1,35 @@
+/*++
+  Copyright (c) 2017 Microsoft Corporation
+
+  Module Name:
+
+  <name>
+
+  Abstract:
+
+  <abstract>
+
+  Author:
+  Nikolaj Bjorner (nbjorner)
+  Lev Nachmanson (levnach)
+
+  Revision History:
+
+
+  --*/
+#pragma once
+#include "math/lp/factorization.h"
+namespace nla {
+    class  core;
+
+    struct factorization_factory_imp: factorization_factory {
+        const core&  m_core;
+        const monomial & m_mon;
+        const monomial& m_rm;
+        
+        factorization_factory_imp(const monomial& rm, const core& s);
+        bool find_canonical_monomial_of_vars(const svector<lpvar>& vars, unsigned & i) const;
+        virtual bool canonize_sign(const monomial& m) const;
+        virtual bool canonize_sign(const factorization& m) const;
+ };
+}