See also https://xkcd.com/552/
It technically isn't, because it's not an "Epimenides" - the poster is not asking to be believed, but just encouraging.
It is not that ¬B(¬B(x)) would promote a truth value of x.
It technically isn't, because it's not an "Epimenides" - the poster is not asking to be believed, but just encouraging.
It is not that ¬B(¬B(x)) would promote a truth value of x.