negation-binds-tightly.md

 # Proposal: NegationBindsTightly
 
+
 <table><tr><th> Ticket       </th>
-<th>[\#135](https://gitlab.haskell.org//haskell/prime/issues/135)</th></tr>
+<th> \#999 
+</th></tr>
 <tr><th> Dependencies </th>
 <th> names of other proposals on which this one depends 
 </th></tr>
 <tr><th> Related      </th>
-<th>[NegativeSyntax](negative-syntax)</th></tr></table>
+<th> [NegativeSyntax](negative-syntax) 
+</th></tr></table>
+
 
 ## Compiler support
 
 
+
 None at present
 
+
 ## Summary
 
 
+
 Which of these definitions are correct Haskell?
 
+
 ```wiki
   x1 = 4 + -5
   x2 = -4 + 5
@@ -30,6 +38,7 @@ Which of these definitions are correct Haskell?
 
 Ghc accepts x2, x4, x6 and rejects the others with a message like
 
+
 ```wiki
 Foo.hs:4:7:
     Precedence parsing error
@@ -39,21 +48,28 @@ Foo.hs:4:7:
 
 Hugs and Helium accept them all.  I think that Hugs is right here.  After all, there is no ambiguity in any of these expressions.  And an application-domain user found this behaviour very surprising.
 
+
 ## Description
 
 
+
 Make unary minus bind more tightly than any other operator.  But not more tightly than function application.
 
+
 ## References
 
 
+
 External references, papers, articles, support in other languages.
 
+
 ## Report Delta
 
 
+
 Something like deleting
 
+
 ```wiki
     lexp6    ->      - exp7
 ```
@@ -61,9 +77,12 @@ Something like deleting
 
 and adding the production
 
+
 ```wiki
     exp10    ->      - fexp
 ```
 
 
 but this relates to Haskell 98 rather than Haskell 2010, so the exact change will differ.
+
+