Elamur Groupantsmath-qworld-cells
The groupant beside math/src/qworld.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 |
| descriptant | present | descriptant |
| invariant | partial | invariant |
| tests | executed bounded 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 |
context_before_operation | context_before_operation | partial source derived model | context_before_operation |
query_selection | query_selection | partial source derived model | query_selection |
Model text
descriptant
math-qworld-cells
For each nonconstant quantity, compute inherited owner/thing, update last_owner/last_thing, then choose op. '=' assigns cell=v; '+'/'-' update old-or-zero by ±v; 'r' leaves the cell map immediately unchanged but records the command/log and retains the context changes.
Epoch 2026-10-31: replaced duplicate catalog sentences with concrete exclusions, compatible-antecedent examples and two distinct scoped behavioral views. Source and prior execution evidence are unchanged; this revision ran no tests.
approximant
Scoped forward relation
For each nonconstant quantity, compute inherited owner/thing, update last_owner/last_thing, then choose op. '=' assigns cell=v; '+'/'-' update old-or-zero by ±v; 'r' leaves the cell map immediately unchanged but records the command/log and retains the context changes.
This source-derived relation is partial; no executable percentage surrogate or replacement is supplied.
invariant
Scoped domain and invariants
Aligned quantities/descriptions are required. Original leaf indices remain in commands. Exact Q arithmetic preserves values but noun normalization supplies no dimensional guarantee.
Cost
Context normalization scans strings; cell updates use BTreeMap O(log cells) plus rational costs. Query may scan commands repeatedly and sort for template fallbacks.
models
behavior_complement
A rate command cannot immediately assign/add/subtract a cell. It can affect the owner/thing of later ownerless/unitless quantities, so a no-effect-on-later-state relation is excluded. Const-prefixed quantities are skipped before context updates.
reverse_reconstruction
Set8;Set3 and Set99;Set3 share final cell3. A rate naming owner Sam/thing apple followed by a bare Set3 can share final cells with an explicit Sam/apple Set3, while command histories differ. Final state cannot recover the context-carrying rate.
context_before_operation
If a rate supplies a nonpronoun subject and nonempty thing, last_owner/last_thing change before the r branch. The next empty-subject/unit description inherits these values despite the rate's zero immediate cell delta.
query_selection
ask tries target difference before action difference, class sum, share and state. The target-difference branch uses ? and may return None without trying subsequent branches; State template delegates this entire ordering.
tests
Scoped evidence
Exact overwrite and final state/ratio only; not every query precedence branch.
Named actual source fixtures: qworld::wave28::{exact_world_overwrites_and_labels_duplicates}.
Parent tests.md records commands and paired profiles. No additional coverage inferred from parent fixtures outside this byte range; source-scoped numeric/parse properties remain partial.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/math/src/qworld.rs.groupant/cells.groupant/