Email Gateway (Mar 04 2022 at 12:39): Email Gateway (Mar 04 2022 at 12:39):From: Lawrence Paulson <lp15@cam.ac.uk>
We have another of the super rare AFP entries based on Isabelle ZF, Transitive Models of Fragments of ZFC, by Emmanuel Gunther, Miguel Pagano, Pedro Sánchez Terraf and and Matías Steinberg:
We extend the ZF-Constructibility library by relativizing theories of the Isabelle/ZF and Delta System Lemma sessions to a transitive class. We also relativize Paulson's work on Aleph and our former treatment of the Axiom of Dependent Choices. This work is a prerrequisite to our formalization of the independence of the Continuum Hypothesis.
And I am looking forward to that proof of independence, a result so difficult that some claim it threatened Gödel’s sanity.
I hope it is not significant that this is article number 666.
It’s online at https://www.isa-afp.org/entries/Transitive_Models.html
Larry Paulson
Last updated: Jan 04 2025 at 20:18 UTC