Chapter 3 Error

[lil-n00b]

Hey,
really enjoy reading through the Book.
I believe I found a calculation error and am now pretty confused...
Its near the end of section 3.3.

The problem arises in the last line:
I get P(A) = 3/6, P(B) = 3/6 and even P(A ∩ B) = 2/6 but when I substitute into P(A ∪ B) I think it should say 3/6 + 3/6 - 2/6 giving 4/6 instead of 3/6 + 3/6 - 1/6 = 5/6.
Calculating success cases / total cases I also get 4/6 which is intuitively the correct answer. (i.e., (R,W), (G,W), (B,W), (G,B).
The confusion probably arose due to the redefinition/overloading of the varaible B which I only noticed later because A stayed the same...
Thanks for the great work!
Cheers!

[lil-n00b]

Found another typo in 3.4:

This time A and B got swapped.

Also what are your opinions of \Rightarrow instead of =>?
Cheers!

[unbalancedparentheses]

@lil-n00b We are checking this. Sorry for the delay. We have too many things going on. Thanks for reporting it!