Formally verified proof! Alexandre Sent from my iPhone
Begin forwarded message: > From: Lawrence Paulson <[email protected]> > Date: 2 May 2017 11:58:43 GMT-3 > To: isabelle-users <[email protected]> > Subject: [isabelle] New in the AFP: The Existence of God (again) > > I’m happy to announce a new entry with the following abstract: > >> A computer-formalisation of the essential parts of Fitting's textbook >> "Types, Tableaus and Gödel's God" in Isabelle/HOL is presented. In >> particular, Fitting's (and Anderson's) variant of the ontological argument >> is verified and confirmed. This variant avoids the modal collapse, which has >> been criticised as an undesirable side-effect of Kurt Gödel's (and Dana >> Scott's) versions of the ontological argument. Fitting's work is employing >> an intensional higher-order modal logic, which we shallowly embed here in >> classical higher-order logic. We then utilize the embedded logic for the >> formalisation of Fitting's argument. (See also the earlier AFP entry >> ``Gödel's God in Isabelle/HOL'’.) > > With thanks to David Fuenmayor and Christoph Benzmüller. The entry is online > at https://www.isa-afp.org/entries/Types_Tableaus_and_Goedels_God.shtml > > Checkmate atheists! > > Larry Paulson > > > -- Você está recebendo esta mensagem porque se inscreveu no grupo "LOGICA-L" dos Grupos do Google. Para cancelar inscrição nesse grupo e parar de receber e-mails dele, envie um e-mail para [email protected]. Para postar neste grupo, envie um e-mail para [email protected]. Visite este grupo em https://groups.google.com/a/dimap.ufrn.br/group/logica-l/. Para ver esta discussão na web, acesse https://groups.google.com/a/dimap.ufrn.br/d/msgid/logica-l/BF455815-D16C-44CA-B15A-7E762D3B3650%40gmail.com.
