From the mandated lookback audit of the composed R0→R1→R1c→OOV surface:
- wrong=0 HAZARD (medium): realize_quantitative trusted equation admissibility it
never checked. `comprehend_quantitative` runs real check_admissibility, but the
type does not enforce it, so a future non-reader constructor could slip a
dimensionally-incoherent 'pending'/'refused' equation into the held self (then
surfaced as-told by DETERMINE). Now RE-ASSERTS admitted-status defensively ->
NotRealized("unadmitted_equation"); docstring corrected to match (no longer claims
the type guarantees it). Bite test via a hand-built pending-equation graph.
- Defensive: wrap binding_graph hashing -> NotRealized("unhashable_structure") so a
future numeric field is a clean refusal, not an uncaught TypeError mid-write.
- Coverage (the obligations now bite, not decoration): unadmitted_equation,
not_a_quant_comprehension, no_bound_fact, grounding_failed (monkeypatched probe),
cross-substrate coexistence (meaning_graph + binding_graph in one vault — recall
isolates, structure_keys differ), and the negated_relation refusal (hand-built,
since the reader encodes declarative negation in the PREDICATE not rel.negated).
- Drift: R0 idempotency test now names the actual dedup key (structure_key, not
content_hash); scope doc notes #591 made OOV placement injective (the §0/§1
non-injectivity finding describes the pre-#591 substrate).
Note: the lookback flagged negated_relation as a high reachable-untested hazard, but
verification showed the reader never sets rel.negated=True for declaratives (it
refuses "X is not a Y" or uses some_not/disjoint predicates) — so it is a defensive
branch, tested via a hand-built graph. Green: 35 realize + ruff clean.
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