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: the connecting morphism is defined by choosing one lift with no independence proof
Statement
The connecting morphism is defined by choosing one lift of one cycle representative, with no independence proof required.
Facts & Assumptions
Given: A short exact sequence of module complexes.
The statement refuted is: the connecting morphism is defined by choosing one lift of one cycle representative, with no independence proof required.
The module formula proves independence of the chosen lift and of the chosen cycle representative (Elementwise formula for the connecting map in module categories).
The categorical construction leaves no residual choice at all once the universal-property data are fixed (The connecting morphism depends on no choices).
Refutation
The claim in [A1] ignores exactly the two choice-independence checks named in [L1] and the universal-property uniqueness recorded in [L2]. A single lift can at best produce one candidate value; it does not define a map on homology classes.
Since the actual construction either proves independence of all allowed choices or avoids those choices altogether, [A1] contradicts the established definition of the connecting morphism. Therefore [A1] is false.
Depends on
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
6 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
- Charles A. Weibel, Chapter 1 of An Introduction to Homological Algebra (standard reference, not scraped)
- The Stacks Project, Section 12.13: Complexes (standard reference, not scraped)