Jensen's Σ* theory and the combinatorial content of V = L

Publisher: Cambridge University Press

E-ISSN: 1943-5886|59|3|1096-1104

ISSN: 0022-4812

Source: The Journal of Symbolic Logic, Vol.59, Iss.3, 1994-09, pp. : 1096-1104

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Abstract

An awkward feature of the standard fine structure theory of the Jα 's (see Jensen [72]) is that special parameters are required to make good sense of the notion of “Σn Skolem hull”, parameters which may not be preserved in condensation arguments.