By your kind help the “Principia Mathematica”BRussell, Bertrand, und Alfred North Whitehead!1910@Principia Mathematica, Cambridge UK, 1910–1913, 2. Aufl., 1925–1927 vol. I-III are in my hands. I am very glad and thankful to have them. Now the new edition of vol. I is very expensive. I have seen, that only few parts have been changed. Is there perhaps a possibility for getting by your intervention only these new parts separated from the Cambridge University PressICambridge University Press for a lower prise than the 42 s.?
With many thanks for your kindness‚
