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“Sybex CSG 11” Chapter 12 Page 534.

 
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The topic "Restrictions on Using var in the Parameter List" proposes to evaluate if some lambda expressions does compile or not.

At line 4, the expression "var w -> 99" does not compile. But the book says that it is "because parentheses, (), are required when using the parameter name.".

I disagree with the ending, as parameter names are always mandatory. A better explanation would be  "because parentheses, (), are required when using the parameter **type**.".

Thanks for your attention!
 
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Confirmed and added to the errata crediting you. Thanks!
 
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