`polarity` was read by NOTHING. `CurriculumChain.sentence` was unconditionally
affirmative, so a row authored to REFUTE an atom compiled to a premise
ASSERTING it and the question came back `entailed`. The independent oracle
ignored the field too — so gold agreed and wrong=0 stayed green. That is the
shape of defect no gate in this repo can catch, which is why ADR-0264 settled
the epistemology before any code moved.
R1 — row-level `polarity`, absent => affirmative. Not an `intent` value and not
a new `operator_family`: bands key on the connective-derived family, so
`modal_negative` would open a fresh band at n=0 instead of adding refuted
volume to the band it belongs to. An UNRECOGNIZED token is dropped at the
admission boundary rather than read as affirmative — that is the one direction
of error the rule exists to prevent. `as_row` OMITS the field when affirmative,
so committed corpora stay byte-identical and no lane hash moves.
R2 — a negative row compiles under the sentential-negation prefix the argument
reader already parses, so `(¬p, therefore p)` is a tautological refutation.
R3 — `atom_sentence` is polarity-independent, which IS the rule: a negative row
must mint the SAME propositional atom. Demonstrated, not just asserted —
`test_r3_a_different_connective_would_silently_fail_to_refute` shows a negated
paraphrase returning UNKNOWN, i.e. a taught refutation that quietly fails to
refute with nothing going red.
R4 — one atom cannot hold both polarities; rejected at ratification, naming
both polarities and the consequence. Left to serve time it would surface as
INCONSISTENT_PREMISES: the band silently going dark across the whole family
instead of the authoring mistake being named. Duplicate-edge and contradiction
stay distinguishable failures.
R8 — the oracle learns polarity INDEPENDENTLY (its own constants, its own row
reader; asserted at source level that it imports nothing from
teaching.curriculum_premises) and EXCLUDES negatives from the reachability
adjacency, because a denial supplies no step from subject to object.
NO negative row is committed — authoring curriculum is Phase F and Shay's. So
the shipped gold mix is still entailed 72 / unknown 4968, zero refuted, and
Phase C's `test_gold_mix_has_no_refuted_class` stays green with its message
retargeted from "unimplemented" to "no content yet".
Also adds `--polarity` to `core proposal-queue ratify`, so the mechanism is
reachable from the operator surface rather than only from Python.
The end-to-end tests repoint BOTH loaders at a temp corpus instead of writing
the committed one. An earlier draft appended to physics_chains_v1.jsonl and
restored it, which is safe under smoke/deductive (serial) but NOT under `full`,
which injects `-n auto`: a parallel worker reading mid-mutation would see an
uncommitted row and the failure would look like a corpus problem rather than
test isolation. Each loader is still redirected separately at its own module
constant and still parses with its own code, so R8's independence is untouched.
[Verification]: in-worktree on canonical CPython 3.12.13 with `uv sync
--locked`: smoke 593 (571 + 22), deductive 332 (310 + 22). curriculum_serve
lane unchanged at n=32 correct=32 wrong=0 anti_recall=5; all 11 lane SHA pins
match; committed corpora untouched (git status clean under
teaching/domain_chains/). Mutation-checked all three load-bearing rules: R2
sentence ignoring polarity -> 5 red; R8 negatives back in the adjacency -> the
exclusion test red; R4 check removed -> both R4 tests red. The R8 test has an
affirmative control proving the 2-hop path is real when the row is positive,
so `depth == 0` cannot pass vacuously.
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