Premise: Anti-Dühring (German: "Herrn Eugen Dührings Umwälzung der Wissenschaft" , "Herr Eugen Dühring's Revolution in Science") is a book by Friedrich Engels, first published in German in 1878. It had previously been serialised in a periodical. There were two further German editions in Engels' lifetime. "Anti-Dühring" was first published in English translation in 1907.
Hypothesis: Anti-Duhring is only available in Germany