Reference · Lemmas behind operations-research checks
rainbow.math.lemmas.lp-duality
General lemmas: lp duality. The mathematical facts the corresponding checks rest on, each checked by the kernel.
signed/expr-sum-lp-weak-duality
signed/expr-sum-lp-weak-duality : (A : ℕ → ℕ → ℚ) (b c x y : ℕ → ℚ) (m n : ℕ) (primal : ∀ (idx : ℕ), ∀ (bound : nat/strict-below idx m), signed/expr-sum-value (fun j => A idx j · x j) n ≤ b idx) (xn : ∀ (idx : ℕ), ∀ (bound : nat/strict-below idx n), 0 ≤ x idx) (yn : ∀ (idx : ℕ), ∀ (bound : nat/strict-below idx m), 0 ≤ y idx) (dual : ∀ (idx : ℕ), ∀ (bound : nat/strict-below idx n), c idx ≤ signed/expr-sum-value (fun i => A i idx · y i) m) → signed/expr-sum-value (fun z => c z · x z) n ≤ signed/expr-sum-value (fun z => b z · y z) m
0 = signed/zero· = signed/multiplyℕ = data/Natℚ = signed/SignedRational≤ = signed/at-most