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STRONGLY INCREASING SEQUENCES
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AI
DOI：10.1017/jsl.2026.10200.png)
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Abstract
En 中文
Using a variation of Woodin's $\mathbb {P}_{\mathrm {max}}$ forcing, we force over a model of the Axiom of Determinacy to produce a model of ZFC containing a very strongly increasing sequence of length $\omega _{2}$ consisting of functions from $\omega $ to $\omega $ . We also show that there can be no such sequence of length $\omega _{4}$ .
Keywords:
pcf
Chang's conjecture
Hechler forcing
Pmax
Journal
J
IF:
0.6
Papers:
69
Citations:
0