b938ad617f
Per-individual propositional lowering over minted (individual, class) atoms: singular membership/predicate facts + all/every/each/no universals, instantiated at every named individual, decided by the same verified ROBDD engine. Closed-table number linking (irregular/invariant priority + three regular suffix rules) is the one semantic identification — attested-pair linking only, under-link over over-link. Composer tier strictly after v1/v1b/v2-EN: monotone widening, v1 lane byte-identical. - 4 new shape-bands (en_member_single/chain/negative/atomic) each earned SERVE at the arena: 13 bands x 720 = 9,360 wrong=0; ledger re-sealed. - New hand-authored lane evals/deduction_serve/v2_member (26/26); ds-en-0022 promoted declined->entailed (the designed acceptance case); report re-pinned; contract.md refreshed to the 4-band cascade. - Typed refusals: quantifier pronouns, bare plurals, definite descriptions, relative clauses, tense, mixed connectives, universal conclusions. - Flag posture unchanged (deduction_serving_enabled default off). [Verification]: deductive 127 / smoke 180 / warmed_session 10; arena all_bands_serve_licensed wrong_is_zero; lanes v1 28/28, v2_en 26/26, v2_member 26/26.
4.4 KiB
Band v3-MEM: the Socrates syllogism, decided (ADR-0258)
Date: 2026-07-23 · Arc: deduction-serve, band 4 of the cascade
ADR: ADR-0258 (Proposed) · Flag: deduction_serving_enabled (default off, unchanged)
What CORE serves now (flag-on transcripts)
Decided, from the real core chat spine, rendered over the user's own
sentences — none of these were decidable yesterday:
Socrates is a man. All men are mortal. Therefore Socrates is mortal. → Given: socrates is a man; all men are mortal. Your premises entail: socrates is mortal.
Tweety is a canary. All canaries are birds. No birds are reptiles. Therefore Tweety is not a reptile. → …Your premises entail: tweety is not a reptile.
Socrates is mortal. All men are mortal. Therefore Socrates is a man. → …Reading each name as one individual and each class word at face value, your premises don't settle whether socrates is a man — it holds in some cases and fails in others.
ds-en-0022 — the eval-lane case pinned as declined purely for want of a
reading band — is promoted to decided (entailed), exactly as ADR-0257 §6.1
reserved.
Mechanism (one new module, everything else reused)
generate/proof_chain/member.py — closed sentence grammar (singular
<NAME> is [not] [a|an] <CLASS> facts; all|every|each/no universals) +
per-individual propositional lowering: one opaque minted atom per
(individual, class) pair; every universal instantiates at every named
individual; the SAME verified ROBDD engine decides. Composer tier strictly
after v1 → v1b → v2-EN: monotone widening, previously-served arguments
byte-identical (v1 lane 28/28 unchanged).
Soundness (ADR-0258 §3): universal instantiation is truth-preserving in every first-order model ⇒ ENTAILED/REFUTED/inconsistent served at full strength (they even survive co-reference of distinct names — added premises, monotone entailment). For this fragment (singular literals + A/E universals, singular conclusion, Boolean reading) the lowering is also complete: a propositional countermodel lifts to a first-order countermodel over exactly the named individuals, so UNKNOWN is genuinely "not forced" — and its surface still scopes itself to the disclosed reading.
Number linking — the one semantic identification: "all men" must bind "a man". Two attested class forms identify iff related by a closed morphology table (irregular + invariant rows consulted first — table membership makes it the sole authority, killing specie/species and new/news over-links) then three regular suffix rules. Under-linking costs coverage, never soundness. This is CORE's first morphology table — the artifact class the tri-language doctrine routes through pack ratification when grc/he siblings land.
Refusal-first: existential quantifiers and quantifier pronouns
(some/everyone/nobody), bare plurals ("Dogs are loyal"), definite
descriptions ("is the philosopher"), relative clauses, tense, mixed
connectives, universal conclusions — all typed refusals, never guesses.
Earned, not flagged (ADR-0256 discipline)
- Four new shape-bands —
en_member_single/chain/negative/atomic— each earned SERVE at the arena: 13 bands × 720 = 9,360 cases, wrong=0, reliability 0.99087 ≥ θ_SERVE=0.99; ledger re-sealed (chat/data/deduction_serve_ledger.json, 13 bands, self-verifying sha). - Arena gold is by-construction and cross-checked against the truth-table oracle over each template's INTENDED instantiated formulas — no reader in the loop (INV-25). The synthetic class lexicon deliberately exercises every number-table row-type, so the license certifies the linking relation too.
- New hand-authored real-English lane
evals/deduction_serve/v2_member/(26 cases, content-disjoint): 26/26, alongside v1 28/28 and v2_en 26/26 (wrong=0 everywhere); report re-pinned.
Verification
core test --suite deductive: 127 passed (41-test reader contract new).- Practice arena:
all_bands_serve_licensed=True wrong_is_zero=True(13 bands). - Lane splits: v1 28/28 · v2_en 26/26 · v2_member 26/26.
- Smoke suite: green (pre-push gate).
Scope-outs (deliberate, ADR-0258 §6)
Conditional–membership fusion; existential premises; tense + verb predicates ("Socrates runs"); identity/definite descriptions/co-reference. Each refuses typed today — refusal telemetry marks which band pays next.