@MISC{nonnengartohlbachszalasDG, AUTHOR = {Andreas Nonnengart and Hans J\"urgen Ohlbach and Andrzej Szalas} , TITLE = {Quantifier Elimination for Second-Order Predicate Logic}, HOWPUBLISHED = {to appear in: Logic, Language and Reasoning. Essays in honour of Dov Gabbay, Part I, Kluwer Academic Press} }