Add Erdős Problem 1168 (ℵ_{ω+1} partition without GCH)#3792
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henrykmichalewski wants to merge 2 commits intogoogle-deepmind:mainfrom
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Add Erdős Problem 1168 (ℵ_{ω+1} partition without GCH)#3792henrykmichalewski wants to merge 2 commits intogoogle-deepmind:mainfrom
henrykmichalewski wants to merge 2 commits intogoogle-deepmind:mainfrom
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Mirrors the Round C docstring pass from the private repo's phase1-infrastructure branch. Each Lean file now carries the canonical source statement and upstream URL inline so reviewers can verify formalization against the source without navigating away from the diff.
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Formalizes Erdős Problem 1168 on a partition relation for
ℵ_{ω+1}that does not assume GCH.Contents
CardinalCountableColorRamsey κ: generalizes the partition statement toℵ_0colors.under_GCHvariant relating the statement to its form under the Generalized Continuum Hypothesis.Closes #1992
Assisted by Claude (Anthropic).