`BookProof.ChapterGravityInvMetric.metric_mul_metric` : metric * metric = 1

Proved

BookProof.ChapterGravityInvMetric.metric_mul_metric

by leonardopedro · Oct 8, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterGravityInvMetric.

BookProof.ChapterGravityInvMetric.metric_mul_metric : metric * metric = 1

Formalization note: Lean 4 identifier BookProof.ChapterGravityInvMetric.metric_mul_metric.

Preamble

-- Generated from ChapterGravityInvMetric.lean — theorem BookProof.ChapterGravityInvMetric.metric_mul_metric
import Definitions.Def_ChapterGravityMetric
import Mathlib
import Definitions.Def_ChapterGravityInvMetric
import Definitions.Def_ChapterGravityProjector
open BookProof.ChapterGravityProjector
open BookProof.ChapterGravityInvMetric



open Matrix
open scoped BigOperators
open BookProof.ChapterGravityProjector
open BookProof.ChapterGravityMetric

Formal statement

theorem BookProof.ChapterGravityInvMetric.metric_mul_metric : metric * metric = 1 := by sorry

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