Abstract
In this paper, we prove the wellfoundedness of recursive notation systems for reflecting ordinals up to Π3-reflection by relevant inductive definitions.
Citation
Toshiyasu Arai. "Wellfoundedness proofs by means of non-monotonic inductive definitions I: Π 02-operators." J. Symbolic Logic 69 (3) 830 - 850, September 2004. https://doi.org/10.2178/jsl/1096901770
Information
Published: September 2004
First available in Project Euclid: 4 October 2004
zbMATH: 1116.03052
MathSciNet: MR2078925
Digital Object Identifier: 10.2178/jsl/1096901770
Rights: Copyright © 2004 Association for Symbolic Logic