4.3 The truth-possibilities of the elementary propositions mean the possibilities of the existence and nonexistence of the atomic facts.
Russell does not really see the main point of the book on logic, the point that what cannot be said must be shown. Yet he is Ludwig's mentor and a famous philosopher and offers to write an introduction and to assist its publication.

Ludwig: "I have given up trying, but if you feel like getting it printed, it is entirely at your disposal."

Adulterously in love with Dora Black, Russell leaves with her for China, the logic book in the hands of Dorothy Wrinch. She obtains the book's publication with the obscure German journal Annalen der Naturphilosophie, where it appears with many clumsy misprints.

After his return in August 1921, divorce, and marriage to Dora, Russell secures through C.K. Ogden its publication with Kegan Paul. Frank Ramsey, eighteen year old undergraduate at King's College, writes a translation with Wittgenstein's patient meticulous help.

Though he still will not speak of Wittgenstein, G.E. Moore suggests the title the book receives when it is published in English in 1922: Tractatus logico-philosophicus.