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.
Dual revised simplex with a finite pivot budget
Definition
Input the exact standard-form data and a basis for which every nonbasic reduced cost is nonnegative, as in Revised simplex standard-form linear program and Basis dictionaries and reduced costs for revised simplex. Also input a nonnegative integer pivot budget . Set and repeat:
- Compute and . If , return
optimalwith the primal basic vector and . - Otherwise choose the least-index basic variable with . For each nonbasic compute . If no , return
infeasiblewith . - If , return
pivot-budget-exhaustedwith the current basis and multiplier . - Among with , choose one minimizing , with least variable index among ties. Replace by , set , and repeat.
The pivot-budget-exhausted status is inconclusive. No finite-success or anti-cycling claim is part of this definition.
Depends on
Used by
Dependency tree · one level
2 results within one dependency step 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
- Dimitris Bertsimas and John N. Tsitsiklis, Introduction to Linear Optimization, §4.5 (standard reference, not scraped)
- Michel Goemans, MIT 18.310 Lecture Notes: Linear Programming, §§2–3 (standard reference, not scraped)