core/docs
Shay e84c0e8428 feat(deduction-serve): Band v6-EX — existential witnesses, decided (ADR-0261)
Completes the all/no/some square. `some` is read for the first time:
"All mammals are vertebrates. Some whales are mammals. Therefore some
whales are vertebrates." is decided entailed; "All unicorns are horned.
Therefore some unicorns are horned." is decided unsettled, with the
no-existential-import reading disclosed in the surface.

Mechanism (generate/proof_chain/exist.py): v5-VP's per-individual
lowering over a domain widened by one Skolem witness per existential
premise and — the load-bearing part — one ARBITRARY element per
existential conclusion, at which every universal still instantiates and
about which no premise asserts anything. Refuting an existential means
deriving a universal, and the arbitrary element is what makes that
derivation genuine instead of an assumption of domain closure: without
it "Rex is a wolf. Rex is not tame. Therefore some wolves are tame."
reads as REFUTED from a domain of one wolf. With it, UNKNOWN.

Four `en_exist_*` bands earned SERVE at 720x wrong=0 on the first arena
seal (25-band ledger); the 32-case hand-authored v2_exist split passed
32/32 first run; full lane 166/166 wrong=0 across six splits.

Also fixes a wrong-answer path this work uncovered in Band v1b
(ADR-0261 §5.1): `to_syllogism` FILTERED premises it could not express
out of the projection and answered from the remainder, so "Aristotle is
a philosopher. All philosophers are scholars. Therefore some scholars
are philosophers." lost its only witness and was served "that doesn't
follow". It now refuses — matching its propositional sibling
`to_deductive_logic`, which always has — and the argument falls through
to the bands that can hold a singular fact. The categorical band
re-earned SERVE 720/720 after the change; both examples are pinned as
regression cases.

Promotion: `ds-mem-0020` declined -> unknown (ADR-0258's existential
scope-out, now read; an anonymous witness never transfers to a named
individual, so UNKNOWN is its honest verdict, not entailed).

[Verification]: core test --suite deductive 232 passed; reader tests
33/33; register+surface tests 52 passed; arena 25 bands x 720 wrong=0
(all SERVE); lane 166/166 wrong=0; lane SHAs 9/10 match (public_demo
drift is pre-existing on the base commit and unrelated — evidence in
the Tier-S brief).
2026-07-24 14:14:37 -07:00
..
adr feat(deduction-serve): Band v6-EX — existential witnesses, decided (ADR-0261) 2026-07-24 14:14:37 -07:00
agents/grok
analysis feat(coherence): grounded-open hedge arm — serve pack surfaces honestly hedged instead of over-refusing (ADR-0254) 2026-07-23 01:27:17 -07:00
architecture
audit docs: accept ADR-0246, 0247, 0248 and update packet 2026-07-18 11:18:51 -07:00
benchmarks
briefs docs(governance): weekly-audit rulings T1/T7/T8/T9 — INV-32/33/34 registration, ADR-0243 fold, residual escalation, path sweep, prune ledger 2026-07-22 19:18:59 -07:00
curriculum
decisions
evals
examples
handoff fix(cognition): restore register axis on pipeline-served turns + Phase 0 of generalization arc 2026-07-24 12:28:32 -07:00
handoffs docs(paradigm): retire six competing unratified problem-solving paradigms under ADR-0252 2026-07-19 14:46:47 -07:00
implementation docs(paradigm): retire six competing unratified problem-solving paradigms under ADR-0252 2026-07-19 14:46:47 -07:00
issues fix(tests): session-scoped engine-state isolation baseline — close module-scope escape to the live life-store 2026-07-22 20:32:06 -07:00
lab
outreach
paradigm-archive docs(paradigm): retire six competing unratified problem-solving paradigms under ADR-0252 2026-07-19 14:46:47 -07:00
plans fix(cognition): restore register axis on pipeline-served turns + Phase 0 of generalization arc 2026-07-24 12:28:32 -07:00
research feat(deduction-serve): Band v6-EX — existential witnesses, decided (ADR-0261) 2026-07-24 14:14:37 -07:00
sessions
specs docs(governance): weekly-audit rulings T1/T7/T8/T9 — INV-32/33/34 registration, ADR-0243 fold, residual escalation, path sweep, prune ledger 2026-07-22 19:18:59 -07:00
workbench docs(governance): weekly-audit rulings T1/T7/T8/T9 — INV-32/33/34 registration, ADR-0243 fold, residual escalation, path sweep, prune ledger 2026-07-22 19:18:59 -07:00
zig
3lang-depth-pr-plan.md
admissibility-exemplars.md
ci-optimization.md
core-rd-base-prompts.md
ethics_packs.md
EVAL_AUDIT_2026-05-20.md
eval_methodology.md
frontier_baselines.md
gaps.md
handoff_template.md
hitl-backpressure.md
holdout_recipients.txt
identity_packs.md
master-plan-post-substrate-audit.md
memo.html
model_dependency_size_tally.md
pack_inventory_2026-05-21.md
position_paper.md
PROGRESS.md
README.md
recognizer-registry.md
refusal-taxonomy.md
reviewers.yaml
RUST.md
safety_packs.md
sponsors.md
teaching_order.md
test-debt-quarantine.md
testing-lanes.md
Whitepaper.md
Yellowpaper.md

CORE Documentation Index

This is the central index for all documentation in the CORE project.

Canonical Root Documents

Directories

Architecture & Design

  • adr/ - Architecture Decision Records (ADRs). The canonical history of all ratified engineering choices.
  • architecture/ - High-level architectural documents (e.g., pipelines, schemas).
  • analysis/ - Deep dives and master plans for structural changes.
  • specs/ - Detailed technical specifications and invariants.

Planning & Progress

  • plans/ - Capability roadmaps and implementation plans.
  • briefs/ - Project briefs and scoping documents for upcoming work.
  • issues/ - Detailed issue analyses and technical reproductions (not standard trackers).
  • audit/ - Audit reports and claims ledgers.

Operations & Usage

  • examples/ - Usage examples and reference integrations.
  • workbench/ - Documentation for the CORE workbench UI and related tooling.
  • agents/ - Agent-specific operational guides.

    Note regarding agents/grok/: Operational guide for using Grok 4.3 + Grok Build with CORE. This is not architecture documentation.

Learning & Evaluation

  • curriculum/ - Documentation on the teaching/learning order and knowledge progression.
  • evals/ - Evaluation methodology and performance criteria documentation.
  • benchmarks/ - Benchmark evidence and performance tracking logs.

Historical & Experimental

  • sessions/ - Chronological session logs documenting the "decision trail" and intellectual history of major choices.
  • handoffs/ - Legacy brief, audit, and investigation notes (historical; the formal HANDOFF mechanism is retired — see AGENTS.md for the current lightweight session-break-summary-<DATETIME>.md convention).
  • research/ - Raw research notes and preliminary findings.
  • lab/ - Experimental content (Warning: Not ratified; must not be referenced as authoritative in production PRs).

External

  • outreach/ - External communications and messaging.
  • zig/ - Scoped documentation for the Zig language components.