math-classic-cli
The groupant beside math/src/main.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 |
| composition | partial | composition |
| descriptant | present | descriptant |
| invariant | partial | invariant |
| tests | partial bounded evidence | 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 |
failure_precedence | failure_precedence | partial source derived model | failure_precedence |
representation_transport | representation_transport | partial source derived model | representation_transport |
resource_boundary | resource_boundary | partial source derived model | resource_boundary |
domain_boundary | domain_boundary | partial source derived model | domain_boundary |
Model text
descriptant
Source-bound description
Missing command errors before model load. Nonempty args load model before eval/test/parse or unknown-command rejection. eval prints errors; i128 overflow falls back to reparsing rendered Expr in unitless big calc with10s limit. test aggregates suite; parse splits whitespace.
Epoch 2026-10-31: prospective model before bounded synthetic tests; production behavior unchanged. Model-backed eval/test/parse and fallback unexecuted; usage/compile evidence only.
approximant
Forward relation
Missing command errors before model load. Nonempty args load model before eval/test/parse or unknown-command rejection. eval prints errors; i128 overflow falls back to reparsing rendered Expr in unitless big calc with10s limit. test aggregates suite; parse splits whitespace.
Domain: Safe no-argument usage only; model-backed execution excluded.
Executable Rust approximant unsupported: categorical/effect observations have no useful percentage metric yet. Future caps1/2/5/10% only; no automatic substitution.
invariant
Invariant and cost
No args excludes model load; unknown nonempty command does not. Overflow adapter is not proven unit-preserving.
Ordering: Command presence→model load→dispatch. Understanding→small answer→overflow fallback.
Cost: Model load+understanding/evaluation+O(output bytes); file/model storage dominates, no global cap.
composition
Composition and epoch memory
Understander→eval/suite; Expr display→calc fallback is a partial unit transport.
Model-backed eval/test/parse and fallback unexecuted; usage/compile evidence only.
Partial syntax and finite tests do not establish all caller assumptions.
models
behavior_complement
No args excludes model load; unknown nonempty command does not. Overflow adapter is not proven unit-preserving.
reverse_reconstruction
Printed answer admits many questions/trees. Overflow-rendered expression cannot reconstruct original dimensional semantics; load failure can mask invalid command.
failure_precedence
Command presence→model load→dispatch. Understanding→small answer→overflow fallback.
representation_transport
Understander→eval/suite; Expr display→calc fallback is a partial unit transport.
resource_boundary
Model load+understanding/evaluation+O(output bytes); file/model storage dominates, no global cap.
domain_boundary
Safe no-argument usage only; model-backed execution excluded.
tests
Evidence, 2026-10-31
Selected actual-source checks: Compiled math executable no-argument usage in debug/release. Exact commands, numeric statuses, normalized outcomes, compiled assertion controls and restoration receipts are in the external wave28 mathcontrol run.
Model-backed eval/test/parse and fallback unexecuted; usage/compile evidence only.
No live teacher/API, trained model, corpus/held-out, GPU, DB or expensive benchmark run. Parent syntax generated twice identically. Scope remains partial.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/math/src/main.rs.groupant/