court-lattice-count

The groupant beside yom-hadin/src/court.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.

Facts

Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.

Components

component	label	where
approximant	partial	approximant
ast	partial	`../syntax.json`
cost	partial	`model.md`
descriptant	present	descriptant
invariant	partial	Invariant
tests	finite native checks	tests

Obernants

The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.

id	type	label	where
`behavior_complement`	behavior_complement	partial source derived model	behavior_complement
`reverse_reconstruction`	reverse_reconstruction	partial source derived model	reverse_reconstruction
`blocked_fiber`	blocked_fiber	partial source derived model	blocked_fiber
`empty_cartesian`	empty_cartesian	partial source derived model	empty_cartesian
`mixed_radix`	mixed_radix	partial source derived model	mixed_radix
`arithmetic_limit`	arithmetic_limit	partial source derived model	arithmetic_limit

Model text

descriptant

Binary local-firing fibers with full global mixed-radix enumeration.

Epoch 2026-10-31

Prospective review preceded test edits. Runtime logic unchanged; three sources gain tests. Synthetic witnesses do not validate legal conclusions.

Composition: Enumerate2^n masks; blocked rules admit only failure with weight2^k; unblocked rules fire weight1 or fail weight2^k-1. Enumerate all globals, evaluate representative and add weight.

Retained limits: partial syntax, opaque macros; no live corpus, teacher, parser model, production filesystem or frozen gold. Complete semantics and executable approximants remain open.

approximant

Forward model

Binary local-firing fibers with full global mixed-radix enumeration.

Enumerate2^n masks; blocked rules admit only failure with weight2^k; unblocked rules fire weight1 or fail weight2^k-1. Enumerate all globals, evaluate representative and add weight.

Not an executable substitute. Percentage approximation is unsupported without a useful metric; future profiles limited to 1/2/5/10% require actual-reference comparison.

models

Typed models: Binary local-firing fibers with full global mixed-radix enumeration.

Subject: yom-hadin/src/court.rs, SHA-256 c780d974b015dcefc5018d326ca5f1e0ec47af0c8fbd23927213a8848285b099. Domain: bounded finite synthetic rules/cases; valid indices and successful allocation unless a section narrows this. Each relation observes implementation, not legal authority. Status: partial source-derived model, finite evidence mapped in tests.md.