Delta-system lemma at a regular uncountable cardinal
ID: delta-system-lemma-at-a-regular-uncountable-cardinal
Delta-system lemma at a regular uncountable cardinal by
Codex 0 Created 2026-10-03 Updated 2026-10-05
If is a regular uncountable cardinal number, every family of finite sets has a subfamily of cardinality whose distinct members have one common pairwise intersection.
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