Elamur Groupantsworld-qud-tracking
The groupant beside world/src/qud.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 source model | forward |
| ast | partial | ../syntax.json |
| composition | partial source model | composition |
| cost | partial source model | cost |
| descriptant | partial source model | epoch-memory |
| invariant | partial source model | invariant |
| tests | partial source model | checks |
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 |
|---|---|---|---|
world-qud-tracking-behavior-complement | behavior_complement | partial source model | behavior-complement |
world-qud-tracking-reverse-reconstruction | reverse_reconstruction | partial source model | reverse-reconstruction |
world-qud-tracking-recency | constraint_relation | partial source model | recency |
world-qud-tracking-givenness | constraint_relation | partial source model | givenness |
Model text
forward
Push on trimmed trailing question mark; otherwise newest congruent wins, complete removes only it, partial removes nothing. Implicit question uses given before extending it; generic first/next fallback never pushes.
invariant
Exactly one Step per sentence. Stack is an increasing subsequence of pushed IDs. Partial/implicit leaves stack unchanged; complete removes only selected ID.
cost
S sentences and Q open questions require up to S Q eligibility calls plus ordered-set updates and explanation construction. Add child eligibility cost and output size; track annotation cost remains external.
composition
This fragment shares source and state with its siblings; root composition specifies ordering and latent dependencies. It is not an independent replacement API.
epoch-memory
Predicted latest eligible and partial persistence; 46,656 bounded histories confirm. Generic-hedge prose overstates implementation: Who+maybe is complete. No production repair or continuous approximation metric proposed.
checks
Five native tests: 46,656 six-step histories (279,936 transitions), uncertainty interaction, empty-content slot gate, four polarity preimages, ordered givenness. Fragment scopes are defined by source byte ranges; root evidence distinguishes executed helper tests from inspection-only branches.
behavior-complement
Within the scoped input/output universe, violating recency or givenness is excluded by the source model. This inner constraint family does not claim a complete complement.
reverse-reconstruction
Converse retains all inputs compatible with the scoped output and fixed dependencies; projections and discarded candidates generally create multiple antecedents. No single inverse is claimed.
recency
Newest partial blocks an older complete candidate; maximum eligible ID is independent oracle on ordered IDs.
givenness
Filter requested lemmas against given; classify remaining against answer, preserving request order, duplicates and case.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/world/src/qud.rs.groupant/tracking.groupant/