fdfb71f59b
core chat now decides Aristotelian syllogisms end-to-end -- the marquee
'basic logical work' widening. Closes Phase 0's fork: the ONLY categorical
decider was evals/syllogism/oracle.py (the sealed independence oracle serving
must not import; INV-25). This ships a production decider.
generate/proof_chain/categorical.py lowers a categorical argument to the
propositional regime (one Boolean atom per term-membership profile) and rides
the already-verified ROBDD engine -- no new decision procedure, soundness
inherits from the flagship. Sound AND complete for the modern/Boolean reading
(Darapti + existential-import-only forms correctly INVALID), with no reliance
on a lucky domain size. Independent of the eval oracle by mechanism (ROBDD-
over-profiles vs brute-force finite-model enumeration); proven by case-for-case
agreement with it across the whole syllogism gold lane.
New: generate/proof_chain/categorical.py, render_syllogism (deterministic
valid/invalid/inconsistent templates), CATEGORICAL shape-band, arena
categorical band (4 valid forms + 2 invalid, by-construction gold cross-checked
vs the independent syllogism oracle), tests/test_categorical_decider.py (8
tests incl. the independence-by-agreement proof).
Changed: chat/deduction_surface.py (categorical branch, license-gated via a
shared _license_gate helper; propositional path byte-identical), arena
DeductionSolver dual-path in lock-step with the composer, re-sealed ledger (5
bands, categorical earns SERVE at 0.99087 wrong=0), Phase-2 lane decide()
mirrors the dual path with the 3 categorical cases reclassified to their true
valid/invalid verdicts + 1 invalid case (n 27->28), report+SHA regenerated.
Honest wrinkles: irregular plurals ('fish') decline with unknown_morphology
(a reader limit, correctly not a wrong); surfaces read in singularized terms
('all whale are animal') -- the exact ids the engine reasoned over, no cosmetic
re-pluralization that could drift from the decision.
[Verification]: smoke 180 passed; cognition 122 passed/1 skipped; core test
--suite deductive 45 passed; test_categorical_decider 8 passed; practice
runner 5 bands all SERVE wrong=0; deduction_serve lane SHA regenerates to the
committed pin.
28 lines
3.4 KiB
JSON
28 lines
3.4 KiB
JSON
{"id": "ds-v1-0001", "text": "If s then t. s. Therefore t.", "gold": "entailed", "class": "modus_ponens"}
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{"id": "ds-v1-0002", "text": "If s then t. Not t. Therefore not s.", "gold": "entailed", "class": "modus_tollens"}
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{"id": "ds-v1-0003", "text": "If p then q. If q then r. Therefore if p then r.", "gold": "entailed", "class": "hypothetical_syllogism"}
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{"id": "ds-v1-0004", "text": "p or q. Not p. Therefore q.", "gold": "entailed", "class": "disjunctive_syllogism"}
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{"id": "ds-v1-0005", "text": "p or q. Not q. Therefore p.", "gold": "entailed", "class": "disjunctive_syllogism"}
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{"id": "ds-v1-0006", "text": "If p then q. Therefore if not q then not p.", "gold": "declined", "class": "out_of_band_nested_negation"}
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{"id": "ds-v1-0007", "text": "p. Therefore p.", "gold": "entailed", "class": "restatement"}
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{"id": "ds-v1-0008", "text": "If p then q. If r then q. p or r. Therefore q.", "gold": "entailed", "class": "constructive_dilemma"}
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{"id": "ds-v1-0009", "text": "If p then q. Not q. Therefore p.", "gold": "refuted", "class": "modus_tollens_negated_query"}
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{"id": "ds-v1-0010", "text": "p or q. Not p. Therefore p.", "gold": "refuted", "class": "direct_negation"}
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{"id": "ds-v1-0011", "text": "If p then q. p. Therefore not q.", "gold": "refuted", "class": "modus_ponens_negated_query"}
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{"id": "ds-v1-0012", "text": "Not p. Therefore p.", "gold": "refuted", "class": "direct_negation"}
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{"id": "ds-v1-0013", "text": "If p then q. If q then r. p. Therefore not r.", "gold": "refuted", "class": "chain_negated_query"}
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{"id": "ds-v1-0014", "text": "p or q. Therefore p.", "gold": "unknown", "class": "underdetermined_disjunct"}
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{"id": "ds-v1-0015", "text": "If p then q. Therefore p.", "gold": "unknown", "class": "affirming_the_consequent_gap"}
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{"id": "ds-v1-0016", "text": "If p then q. Therefore q.", "gold": "unknown", "class": "antecedent_not_given"}
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{"id": "ds-v1-0017", "text": "p or q. Therefore q.", "gold": "unknown", "class": "underdetermined_disjunct"}
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{"id": "ds-v1-0018", "text": "If p then q. If r then q. Therefore p.", "gold": "unknown", "class": "common_consequent_gap"}
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{"id": "ds-v1-0019", "text": "p. Not p. Therefore q.", "gold": "declined", "class": "inconsistent_premises"}
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{"id": "ds-v1-0020", "text": "If p then q. p. Not q. Therefore r.", "gold": "declined", "class": "inconsistent_premises"}
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{"id": "ds-v1-0021", "text": "p. Not p. Therefore p.", "gold": "declined", "class": "inconsistent_premises"}
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{"id": "ds-v1-0022", "text": "p or q. Not p. Not q. Therefore p.", "gold": "declined", "class": "inconsistent_premises"}
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{"id": "ds-v1-0023", "text": "All mammals are animals. All whales are mammals. Therefore all whales are animals.", "gold": "valid", "class": "categorical_barbara"}
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{"id": "ds-v1-0024", "text": "No reptiles are mammals. All snakes are reptiles. Therefore no snakes are mammals.", "gold": "valid", "class": "categorical_celarent"}
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{"id": "ds-v1-0025", "text": "If it rains then the ground is wet. It rains. Therefore the ground is wet.", "gold": "declined", "class": "out_of_band_multiword_conditional"}
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{"id": "ds-v1-0026", "text": "Some students are poets. All poets are artists. Therefore some students are artists.", "gold": "valid", "class": "categorical_datisi"}
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{"id": "ds-v1-0028", "text": "All cats are animals. All dogs are animals. Therefore all dogs are cats.", "gold": "invalid", "class": "categorical_undistributed_middle"}
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{"id": "ds-v1-0027", "text": "If p then q. If q then r. If r then s. p. Therefore s.", "gold": "entailed", "class": "three_hop_chain"}
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