Non-Tightness in Class Theory and Second-Order Arithmetic

FREIRE, A. R., & WILLIAMS, K. J. (2025). Non-Tightness in Class Theory and Second-Order Arithmetic. Journal of Symbolic Logic, 90(2), 627-654.

Type

Journal article

Intellectual base

Primary research

Year

2025

Volume

90

Issue

2

Pages

627-654

DOI

10.1017/jsl.2023.38

DOI registrant

Cambridge University Press

Link

https://doi.org/10.1017/jsl.2023.38

Cited by

1 citation across 1 artifact.

Domain-specific

• Closed Preordered Set
  • Freire and Williams use `<Ord`-closed class forcing to construct generic extensions that add classes without adding sets; the role structure is identical, but the permitted sequence lengths are all set ordinals rather than those below one cardinal.

Verification

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Links previously used in the corpus

Before the registry existed this work was also linked 1 other way.

• https://arxiv.org/abs/2212.04445 ×1

Registry ID ref:b08d4c5c854d · see in the full table