Describe the error
You are asked to provide a written symbol of "you cannot fool everyone at the same time".
The correct answer is missing as I believe it should be $\exists y \forall x \neg P(x,y)$.
Where the indicated correct answer is: $\exists x \forall y \neg P(x,y)$ which is as stated "There is a person that is never fooled".
What version of the book are you using?
4th edition
Describe the error$\exists y \forall x \neg P(x,y)$ .$\exists x \forall y \neg P(x,y)$ which is as stated "There is a person that is never fooled".
You are asked to provide a written symbol of "you cannot fool everyone at the same time".
The correct answer is missing as I believe it should be
Where the indicated correct answer is:
What version of the book are you using?
4th edition