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Tue 21 Jan 2020 17:12 - 17:34 at Maurepas - Formalized mathematics 2 Chair(s): Tobias Nipkow

We describe a formal proof of the independence of the continuum hypothesis ($\mathsf{CH}$) in the Lean theorem prover. We use Boolean-valued models to give forcing arguments for both directions, using Cohen forcing for the consistency of $\neg \mathsf{CH}$ and a $\sigma$-closed forcing for the consistency of $\mathsf{CH}$.

Tue 21 Jan
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16:50 - 17:56: CPP 2020 - Formalized mathematics 2 at Maurepas
Chair(s): Tobias NipkowTechnische Universität München
CPP-2020-papers16:50 - 17:12
Fabian ImmlerCarnegie Mellon University, Yong Kiam TanCarnegie Mellon University, USA
DOI Pre-print Media Attached
CPP-2020-papers17:12 - 17:34
Jesse Michael HanUniversity of Pittsburgh, Floris van DoornUniversity of Pittsburgh
DOI Pre-print Media Attached
CPP-2020-papers17:34 - 17:56
DOI Pre-print Media Attached File Attached