IndisputableMonolith.Gravity.LedgerSuperposition
Gravity-side module that equips the eight-tick complex signal carrier with a linear ledger superposition structure and proves that recognition updates preserve the inner product and norm. Physicists working the quantum-channel or macroscopic-ledger tracks cite it for the cost-gradient channel and C-linear extension lemmas. The argument is structural: finite sums of Signal8 states, inner-product identities, and a packaged theorem record.
claimOn the eight-tick carrier $\mathrm{Signal}_8 \simeq (\mathbb{F}_8 \to \mathbb{C})$, finite linear superpositions of ledger states are well-defined; the recognition update acts $\mathbb{C}$-linearly and preserves the standard Hermitian inner product and norm. The module packages this as a ledger-superposition theorem used by macroscopic gravity and BMV phase calculations.
background
Recognition Science forces an eight-tick period ($T7$, $2^D$ with $D=3$) on the ledger. The cyclic shift on that period is not diagonalizable over $\mathbb{R}$, so Complex Structure Forcing promotes the carrier to $\mathrm{Signal}_8 : \mathrm{Fin},8 \to \mathbb{C}$. Schrödinger Derivation then builds the continuum wave equation on that same carrier.
This gravity module sits one layer up: it treats finite superpositions of single-site $\mathrm{Signal}_8$ states as the microscopic Hilbert data for a ledger, introduces the natural inner product $\langle\cdot,\cdot\rangle_8$, and studies how the recognition operator acts on those superpositions. Sibling names (inner product, finite-sum closure, update-norm preservation) mark the elementary linear-algebra layer before macroscopic or multi-mass constructions.
Local abbreviations identify the analytic eight-tick signal with the canonical foundation type, so gravity proofs reuse the forced complex structure rather than re-deriving it.
proof idea
Definition-and-lemma layer, not a single deep proof. Signal8 is aliased to the foundation carrier; an eight-component Hermitian inner product is defined componentwise. Finite sums of ledger amplitudes are closed under the carrier operations. Recognition-update lemmas show the update is linear and preserves both the inner product and the induced norm (unitarity on the discrete carrier). Those facts are collected into a theorem record (LedgerSuperpositionTheorem) with an inhabited instance so downstream modules can assume the package rather than reassemble the pieces.
why it matters in Recognition Science
Track-2 gravity needs a Hilbert carrier on which recognition acts linearly before one can talk about macroscopic ledgers or gravitational phases. MacroscopicLedger imports this module to discharge Track 2.A: the recognition update extends canonically and $\mathbb{C}$-linearly from the single-site Signal8 carrier to the macroscopic ledger Hilbert space.
BMVPositive (Gravity IV, Theorem 3) uses the linear cost-gradient channel defined here: in the two-mass two-branch protocol the channel produces a branch-dependent gravitational phase whose entangling combination $\Delta\phi$ is generically nonzero, hence a non-product joint state. Without superposition preservation and norm control on Signal8, that phase calculation has no carrier.
Landmarks in play: T7 eight-tick octave, forced complex structure, and the Schrödinger derivation that already fixed Signal8 as the analytic state space.
scope and limits
- Does not derive the Schrödinger equation; that lives in Foundation.SchrodingerDerivation.
- Does not construct the macroscopic multi-site Hilbert space; MacroscopicLedger does.
- Does not compute BMV phases or prove entanglement; only supplies the linear channel.
- Does not force $D=3$ or the eight-tick period; those are upstream T7/T8 facts.
- Does not address continuum field gravity or Einstein equations.
used by (2)
depends on (3)
declarations in this module (20)
-
abbrev
Signal8 -
abbrev
inner8 -
theorem
ledger_superposition_preserved -
theorem
ledger_superposition_finite_sum -
theorem
recognition_update_inner_preserved -
theorem
recognition_update_norm_preserved -
structure
LedgerSuperpositionTheorem -
def
ledgerSuperpositionTheorem -
theorem
ledgerSuperpositionTheorem_inhabited -
abbrev
DensityConfig -
abbrev
GravityConfig -
abbrev
FreeC -
def
costGradientLinearExtension -
theorem
costGradient_linear_basis -
theorem
costGradient_linear_add -
theorem
costGradient_linear_smul -
theorem
costGradient_linear_unique -
structure
CostGradientFunctoriality -
def
costGradientFunctoriality -
theorem
costGradientFunctoriality_inhabited