`BookProof.ChapterAttentionCoarseGrain.mergeWeights_nonneg` {f : Fin m → Fin r} {p : Fin m → ℝ} (hp : ∀ x, 0 ≤ p x) (y : Fin r) : 0 ≤ mergeWeights f p y

Proved

BookProof.ChapterAttentionCoarseGrain.mergeWeights_nonneg

by leonardopedro · Oct 7, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterAttentionCoarseGrain.

BookProof.ChapterAttentionCoarseGrain.mergeWeights_nonneg {f : Fin m → Fin r} {p : Fin m → ℝ} (hp : ∀ x, 0 ≤ p x) (y : Fin r) : 0 ≤ mergeWeights f p y

Formalization note: Lean 4 identifier BookProof.ChapterAttentionCoarseGrain.mergeWeights_nonneg.

Preamble

-- Generated from ChapterAttentionCoarseGrain.lean — theorem BookProof.ChapterAttentionCoarseGrain.mergeWeights_nonneg
import Definitions.Def_ChapterObservableExpectation
import Definitions.Def_ChapterSoftmaxSharpness
import Mathlib
import Definitions.Def_ChapterAttentionCoarseGrain
open BookProof.ChapterAttentionCoarseGrain


open scoped BigOperators

noncomputable section


open BookProof.ChapterObservableExpectation BookProof.ChapterSoftmaxSharpness

variable {m r : ℕ} {E : Type*} [NormedAddCommGroup E] [NormedSpace ℝ E]

Formal statement

theorem BookProof.ChapterAttentionCoarseGrain.mergeWeights_nonneg {f : Fin m → Fin r} {p : Fin m → ℝ} (hp : ∀ x, 0 ≤ p x)
    (y : Fin r) : 0 ≤ mergeWeights f p y := by sorry

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