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.
Koszul Concatenation And Mapping Cone
Statement
The concatenation isomorphism and the append-one mapping-cone identification are natural in and give the displayed cone long exact sequence.
Facts & Assumptions
Given: The rings, finite sequences, modules, and local hypotheses stated in the claim. The declared prerequisites used here are Koszul Complex Concatenation Tensor Isomorphism, Koszul Append One Element Mapping Cone Identification, Koszul Mapping Cone Homology Exact Sequence.
Proof
The direct-sum exterior identification supplies the signed concatenation chain isomorphism.
Splitting off the final basis vector gives its multiplication cone, whose long exact sequence gives the stated package.
Depends on
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
7 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
- The Stacks Project, Koszul complexes and regular sequences (standard reference, not scraped)