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LeanPool.MatrixMultiplicationAllFields.LinearAlgebra.MatrixMultiplication.ComplexArithmetic.LowerBound

Complex arithmetic programs and asymptotic matrix multiplication costs.

theorem MatrixMultiplicationAllFields.MatrixMultiplication.Foundation.Arithmetic.Program.eval_eq_constant_or_input_of_cost_eq_zero {Input : Type u_1} {r : ℕ} (p : Program Input r) (hp : p.cost = 0) (i : Fin r) :
(∃ (z : ℂ), ∀ (inputs : Input → ℂ), p.eval inputs i = z) ∨ ∃ (a : Input), ∀ (inputs : Input → ℂ), p.eval inputs i = inputs a