KrV B xxviii, the supposition on morality

The passage

From the preface to the second edition, the sentence before »So aber« (B xxviii–xxix, 3:18.21–30). The span begins mid-line at »Gesetzt nun« (3:18.11) and ends at »einräumen« (3:18.21). The whole sentence is a supposition (»Gesetzt ..., so muß«) whose second limb, that speculative reason had proved freedom unthinkable, Kant does not hold; the next sentence says what holds instead. »Data derselben« (3:18.14) is rendered »data of it«; the genitive pronoun can be read of freedom, of reason or of morality, and the translation does not decide. The B page is given from the standard concordance as the older passage places its break, within 3:18.21–30, so that this span lies on B xxviii; the AA line is the authoritative locator.