Wittgensteins glömda arkiv

Gibson also believes that a pinkish Norwegian school exercise book in the archive, which has a complete and previously unknown narrative, may in fact be a missing Wittgenstein gem - something talked about but never seen. \"This may or may not be the missing item called the Pink Book or Yellow Book that scholars have long been hoping for.\" There is also a series of thousands of mathematical calculations in which Wittgenstein examines Fermat's little theorem. \"It's an extraordinary, even bizarre, and yet original series of calculations,\" said Gibson.