Principle E/Linguistic Note

Linguistic Note on Principle E

The term Principle E appears to have been coined by Raymond M. Smullyan and Melvin Fitting for their Set Theory and the Continuum Problem, revised ed.

Its use on $\mathsf{Pr} \infty \mathsf{fWiki}$ is therefore expected be limited to those pages arising directly from concepts raised as a result of that work.