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On Formally Undecidable Propositions of Principia Mathematica and Related Systems [Buy it!] | Gödel, Kurt | USD 15.65 (Sun May 26 00:03:06 2024) | Abebooks | Brook Bookstore | ISBN10: 0486669807, ISBN13: 9780486669809, [publisher: Dover Publications] Softcover [Milano, MI, Italy] [Publication Year: 1992] |