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.
FALSE: a partial computable function has a unique program index
Statement
Every partial computable function has exactly one program index.
Facts & Assumptions
Given: An acceptable numbering .
Every total computable program transformer has a fixed point, by Kleene's second recursion theorem.
Refutation
Consider the total computable transformer It changes only the numerical index and is therefore a computable program transformer.
By [L1], there exists an index with Since , the same partial computable function has at least two distinct indices.
Therefore the statement is false: a partial computable function can have many distinct indices.
Depends on
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
3 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
- Robert I. Soare, Turing Computability: Theory and Applications (standard reference, not scraped)