This article offers an interpretation of Ruth Barcan Marcus's view that just as we cannot know what is false, we cannot believe what is impossible, followed by an argument that if this defense succeeded, it would justify rejecting many of out ordinary belief ascriptions. Although, this defense does not succeed there is something correct and important in Marcus's argument.
Kluwer Academic Publishers
Brown, C. (1991). Believing the impossible. Synthese, 89(3), 353-364. doi:10.1007/BF00413502