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.
Naturality of the pair long exact sequence
Statement
A map of pairs induces a commuting morphism from the long exact sequence of to that of , including the connecting maps.
Facts & Assumptions
Given: A map of pairs .
Proof
The maps on , , and quotient chains give a commuting morphism of the short exact sequences used for the two pair sequences.
Naturality of the homological long exact sequence makes every resulting square commute. In particular, chainwise gives commutation at the connector.
Depends on
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
9 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
- Allen Hatcher, Algebraic Topology, §2.1 (standard reference, not scraped)