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module module moderate

IndisputableMonolith.Foundation.ForcingChainCompleteness3

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Module packaging domain-cost and canonical-threshold infrastructure for the third completeness certificate of the RS forcing chain. It defines a nonnegative domain cost with an evaluation identity, a positive canonical threshold, and an inhabited certificate type bundling those facts. Anyone assembling T0–T8 forcing completeness cites this package rather than re-proving the local inequalities. Content is definitional plus short nonnegativity and positivity lemmas.

claimThe module introduces a domain cost $C_{\mathrm{dom}}$, proves $C_{\mathrm{dom}}\ge 0$ and a pointwise evaluation identity, defines a positive canonical threshold $\theta_*>0$, and packages these into an inhabited certificate for the third stage of forcing-chain completeness.

background

Recognition Science derives physics from one functional equation by a forcing chain T0–T8 (J-uniqueness, phi as self-similar fixed point, eight-tick octave, $D=3$). Completeness of that chain is split into certificate modules; this file is the third such package.

Imports supply the RS time quantum $\tau_0=1$ tick and the Cost layer whose J-cost $J(x)=(x+x^{-1})/2-1$ (equivalently $\cosh(\log x)-1$) is the unique cost obeying the Recognition Composition Law. Domain cost here is a derived nonnegative functional used to score admissible configurations against a fixed positive threshold.

Sibling objects are the cost itself, its evaluation identity and nonnegativity, the threshold and its positivity, and the certificate type with an inhabitation witness.

proof idea

Definition module with short supporting lemmas, not a deep tactic development. The domain cost is introduced, identified with its pointwise evaluation, and proved nonnegative. The canonical threshold is defined and shown positive. Those facts are bundled into a certificate structure; inhabitation of the certificate type is witnessed directly. No multi-step rewriting beyond the nonnegativity and positivity obligations.

why it matters in Recognition Science

Fills a definitional slot in the forcing-chain completeness stack that underwrites the T0–T8 landmarks (T5 J-uniqueness, T6 phi, T7 eight-tick period $2^3$, T8 spatial dimension $D=3$). Downstream assembly of the unified forcing chain can import the certificate and inherit domain-cost nonnegativity and threshold positivity without local re-proof. The dependency graph currently shows no further used-by edges, so the module sits as a ready leaf certificate for the completeness argument rather than an intermediate lemma inside a larger proved theorem.

scope and limits

depends on (2)

Lean names referenced from this declaration's body.

declarations in this module (8)