TY - BOOK AU - Godel, Kurt AU - Meltzer, B. ; tr. TI - On formally undecidable propositions of principia mathematica and related systems T2 - Dover books on Mathematics U1 - 510.9 PY - 1992/// CY - New York PB - Dover N1 - "Purchased under NBHM grant for the year 1998-99" ER -