[HD Pg 0, Sec. 12.5.2 - parts-of-a-lambda-expression]

[flex567]

I think there is an error, see image bellow, I think there shouldn't be a semicolon.

[admin]

Correct. Should be fixed.
thank you for your feedback!

[DazedTurtle]

You seem to be using the word "brackets" a lot in this section, but every single example shows parentheses.

Is the "brackets" wrong, and you mean "parentheses," or are the "()" wrong and you mean "[]"?

I would have assumed it was a typo and used context to figure it out, but it happens repeatedly.

[admin]

The book uses the convention of brackets, square brackets, and curly brackets but you are right. It should be parentheses, brackets, and curly braces.
Should be improved.