Deflationism about incompleteness and the omega-rule

old_uid12342
titleDeflationism about incompleteness and the omega-rule
start_date2013/04/15
schedule17h30-19h30
onlineno
location_infoGrande Salle
summaryWe give a negative answer to the question of whether our conviction about the truth of the Gödel sentence G involves a theory of truth beyond the deflationary theories. After discussing and dismissing Neil Tennant's deflationary view of incompleteness, we show how a new deflationary account of the incompletability of formal systems can be framed in the setting of Peano Arithmetic augmented to include a constructive version of the omega-rule based on the notion of prototypical proof. As a consequence, the ur-inflationary idea that any demonstrative method non-formalisable within Peano Arithmetic has to be epistemologically stronger than the methods encompassed by Peano Arithmetic is shown to be flawed.
responsiblesPataut, Dubucs, Panza