Elamur Groupantsprag-fbench-notation
The groupant beside prag/src/fbench.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 |
|---|---|---|---|
prag-fbench-notation-behavior-complement | behavior_complement | partial source model | behavior-complement |
prag-fbench-notation-reverse-reconstruction | reverse_reconstruction | partial source model | reverse-reconstruction |
prag-fbench-notation-specialization | fbench_notation_projection | partial source model | specialization |
Model text
model
prag-fbench-notation
forward
Trim initial numbering and normalize two dash forms; split spaced bar; recognize Event/Bare/Fact(/Say( prefix. Parse agent, pre-key verb with NOT removed, key/value spans and numeric links. norm_id lowercases and keeps final space/underscore word. Entities split '+' and preserve pronoun annotation.
invariant
Not strict validation: repeated singular keys overwrite; unknown keys are obliques; invalid numeric links drop; unterminated recognized kind prefixes may survive. Pronoun-only entity falls back to pronoun ID.
cost
O(B) scanning/copying, O(B) strings for bounded valid UTF-8 bytes B.
behavior-complement
Canonical fixture excludes retaining the first multiword-name component or interpreting malformed #x as a valid target. Unknown kind lines return None; malformed recognized prefixes are not certified syntax. Universe: bounded supplied inputs and candidate observable outputs at this source revision. Partial source-derived inner exclusions with finite witness evidence; unsampled semantics remain unknown.
reverse-reconstruction
Case, numbering, spacing, malformed links and name prefixes may vary in the same parsed-frame fiber. Original bytes cannot be uniquely recovered. Target is all x in the stated domain with F(x)=y, without unique recovery or an implemented complete solver.
specialization
Field transport: attrs/negation/quoted/condition survive parsing although role metrics omit them.
composition
Children share source identity. Preserve frame indices through alignment/link mapping and batch references through prompt/gate numbering. Independent marginal inverses can lose shared correlations; overlap costs are counted once.
checks
Six fbench and five silver wave16_models tests: finite canonical role oracle, independent ten-role counts, old-code witnesses and compiled controls. See receipts at file root.
epoch-memory
2026-10-30: prospective inspection predicted predecessor defects and duplicate-edge recall inflation. Three old-code witnesses confirm these. Valid adjacency and unique links retain semantics. No score assertions or deduplication introduced. Historical metrics retain original semantics.
limitations
Partial syntax is not expanded semantic AST; macros opaque. Scoped models and finite observations, not full-file verification or proof. No live parser, teacher, corpus, filesystem aggregate, GPU, full course, speed or approximation-cap claim. External effects and resource-extreme malformed inputs remain unexecuted.
evidence
Evidence scope
See root receipts.md for source and raw-log hashes. Pure supplied fixtures only; effects are source inspected.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/prag/src/fbench.rs.groupant/notation.groupant/