How statement and proof provenance work
The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.
- Literature-sourced: the exact statement appears in a cited source; only wording and notation differ.
- AI-adapted: a semantically identical restatement of literature-sourced material, modulo indexing, notation, and boundary cases adopted by the library.
- AI-generated: a genuinely novel statement formulated by AI, with no source for the claim itself.
These labels describe origin, not correctness: citations and verification chips remain separate evidence.
The two local hypotheses at omega
Example
In ZF, together with implies . These are two separate local hypotheses.
Facts & Assumptions
Specker’s two-local-GCH theorem: The two local hypotheses at a set containing omega give its power set equinumerous with its Hartogs number.
is uncountable, every ordinal below it is at most countable, it is a cardinal and a limit ordinal, and its existence is a theorem of ZF: The Hartogs number of omega is omega_1, the least uncountable ordinal.
Verification
Given: The objects and hypotheses in the statement.
Apply Specker with and the identity injection of omega. The two premises concern respectively sizes between omega and its power set, and sizes between that power set and its own power set. The conclusion is .
By the definition and characterization of the first uncountable ordinal, . Substitution gives the asserted bijection, and hence well-orders the power set.
Depends on
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
23 results within two dependency steps of this one, each drawn at its shortest distance from it. An arrow runs from a result to what uses it, so the chart reads left to right and ends at this result, which carries a heavier outline. Every node is a link to that result. Click elsewhere on the chart to enlarge it.
Sources
- Carneiro, Theorem 1 and local-to-global discussion, p.2 (standard reference, not scraped)