“$P\implies Q$ unless $P$ and $\neg Q$.”

to emphasize the use of quotation marks; however, should this not be

“$P\implies Q$” unless “$P$ and $\neg Q$.”?

with a quotation mark after Q in the first implication?

]]>Thank you for taking the time to write these, regards,

D.S.

]]>https://www.scienceopen.com ]]>

The post says “So the conditional probabilities are 2/3 and 1/3. But the amount you gain by switching is so great in the 1/3 case that your expected gain if you switch is certainly positive.

It is not hard to see that this argument works for any amount of money you find in the envelope, as long as it is not 10 dollars”.

I think this argument is nonsense. But it probably looks ok to some brainwashed mathematicians, because they are used to reading forbidding notations, and think if something is written in clear English it is likely to be correct.

Richard Mullins

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