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module module high

IndisputableMonolith.Mathematics.MeasureTheoryFromRS

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This module establishes that the J-cost function from Recognition Science is non-negative and compatible with measure theory constructions. It would be cited when formalizing the measure on the phi-ladder or defect distributions. The module imports Cost and Mathlib then defines CanonicalMeasure, jcost_measurable, MeasureTheoryCert and related objects to certify the measure structure.

claimLet $J$ be the cost function $J(x) = \frac{x + x^{-1}}{2} - 1$. The module defines the canonical measure $\mu_J$ induced by $J$ together with the certificate that $J$ is non-negative and measurable.

background

The module sits inside the Recognition Science derivation of physics from a single functional equation. It imports IndisputableMonolith.Cost, whose J-cost definition supplies the non-negative function $J(xy) + J(x/y) = 2J(x)J(y) + 2J(x) + 2J(y)$. Sibling declarations introduce CanonicalMeasure as the measure generated by this cost, jcost_measurable as the statement that $J$ is measurable, and MeasureTheoryCert as the object witnessing compatibility with Mathlib measure theory.

proof idea

This is a definition module, no proofs. It assembles the imported Cost primitives with Mathlib measure axioms into the named objects CanonicalMeasure, canonicalMeasureCount, jcost_measurable, MeasureTheoryCert and measureTheoryCert.

why it matters in Recognition Science

The module supplies the measure-theoretic layer required by downstream Recognition Science constructions that use defectDist and the phi-ladder. It directly supports the non-negativity claim needed for the mass formula and the eight-tick octave.

scope and limits

depends on (1)

Lean names referenced from this declaration's body.

declarations in this module (5)