make self-contained bind-variables

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/muz/base/hnf.h

@@ -1,37 +1,36 @@
-/*++
-Copyright (c) 2013 Microsoft Corporation
-
-Module Name:
-
-    hnf.h
-
-Abstract:
-
-    Horn normal form convertion.
-Author:
-
-
-Notes:
-
-    Very similar to NNF.
+/*--
+ Module Name:
+ 
+     hnf.h
+ 
+ Abstract:
+ 
+     Horn normal form convertion.
 
+ Author:
+ 
+ 
+ Notes:
+ 
+     Very similar to NNF.
+ 
 --*/
-
+ 
 #ifndef _HNF_H_
 #define _HNF_H_
-
+ 
 #include"ast.h"
 #include"params.h"
 #include"defined_names.h"
 #include"proof_converter.h"
-
+ 
 class hnf {
     class imp;
     imp *  m_imp;
-public:
+ public:
     hnf(ast_manager & m);
     ~hnf();
-    
+     
     void operator()(expr * n,                          // [IN] expression that should be put into Horn NF
                     proof* p,                          // [IN] proof of n
                     expr_ref_vector & rs,              // [OUT] resultant (conjunction) of expressions
@@ -45,5 +44,5 @@ public:
     void reset();
     func_decl_ref_vector const& get_fresh_predicates();
 };
-
+ 
 #endif /* _HNF_H_ */