# Cicho\'n's maximum without large cardinals

**Authors:** Martin Goldstern, Jakob Kellner, Diego A. Mej\'ia, Saharon, Shelah

arXiv: 1906.06608 · 2020-04-27

## TL;DR

This paper proves the consistency of all twelve cardinal characteristics in Cichoń's diagram being pairwise different without relying on large cardinal assumptions, which was previously unachievable.

## Contribution

It demonstrates the consistency of Cichoń's diagram with all entries pairwise distinct without large cardinal hypotheses, advancing understanding in set theory.

## Key findings

- All entries of Cichoń's diagram can be pairwise different without large cardinals.
- Established new consistency results in set theory.
- Removed the need for large cardinal assumptions in this context.

## Abstract

Cicho\'n's diagram lists twelve cardinal characteristics (and the provable inequalities between them) associated with the ideals of null sets, meager sets, countable sets, and $\sigma$-compact subsets of the irrationals.   It is consistent that all entries of Cicho\'n's diagram are pairwise different (apart from $\textrm{add}(\mathcal{M})$ and $\textrm{cof}(\mathcal{M})$, which are provably equal to other entries). However, the consistency proofs so far required large cardinal assumptions.   In this work, we show the consistency without such assumptions.

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/1906.06608/full.md

## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/1906.06608/full.md

## References

29 references — full list in the complete paper: https://tomesphere.com/paper/1906.06608/full.md

---
Source: https://tomesphere.com/paper/1906.06608