The Lean 4 theorem `nsWord_length_le_three` in the `ChapterNavierStokesFlow` chapter of the timepiece formalization

Proved

BookProof.NavierStokesFlow.nsWord_length_le_three

by leonardopedro · Sep 18, 2026 · Mathlib 0df444a (Lean v4.33.1)

timepiece

The Lean 4 theorem nsWord_length_le_three in the ChapterNavierStokesFlow chapter of the timepiece formalization.

Preamble

-- Generated from ChapterNavierStokesFlow.lean — theorem BookProof.NavierStokesFlow.nsWord_length_le_three
import Mathlib
import Definitions.Def_ChapterNavierStokesFlow
open BookProof.NavierStokesFlow


open scoped BigOperators Matrix Kronecker ComplexOrder TensorProduct

Formal statement

theorem BookProof.NavierStokesFlow.nsWord_length_le_three (a : NSWordIndex) : (nsWord a).length ≤ 3 := by sorry

Source

https://github.com/leonardopedro/timepiece/blob/61595bc/BookProof/ChapterNavierStokesFlow.lean

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