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 Bird graph and co-Bird by finite adjacency data
Example
The Bird graph is obtained from the bull by attaching one more pendant vertex to a horn, and co-Bird is its complement.
Facts & Assumptions
Given: The labelled vertices .
The Bird graph consists of the bull on together with the extra edge , and co-Bird is its complement (The Bird graph and co-Bird, Graph isomorphisms, automorphisms and graph complements).
In the bull, the triangle is , the horn vertices are , and is adjacent only to while is adjacent only to (The bull graph).
Verification
By [L1] and [L2], the vertices span the bull, and the new vertex is adjacent only to the horn vertex . Therefore the labelled graph is exactly the Bird graph.
By [L1], co-Bird is obtained by complementing that six-vertex graph on the same label set.
Depends on
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
5 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
- Shenwei Huang, Yiao Ju, and Yidong Zhou, Erdős-Hajnal beyond the five-vertex path, Figure 5 (standard reference, not scraped)