Lean 4 formalization of the neutral structural substrate for Structural Explainability, defining admissibility, separation, and substrate invariants independent of identity regimes.

Lean 4 formalization of the contextual structural explainability layer.

Interactive decision tree for classifying objects into Structural Explainability identity and persistence regimes.

Lean 4 formalization of the necessary and sufficient identity-and-persistence regimes for neutral accountability substrates.

Lean 4 formalization of the contextual structural explainability layer.

Authoritative specification of Governance Boundary (GB).

Authoritative specification of Contextual Evidence & Explanations (CEE).

Documentation site for Structural Explainability.

Structural Explainability mapping examples for Grade 8 mathematics (CTX -> NOR), including NAEP, CCSS, and international systems, includes validation and coverage matrix generation.

Lean 4 formalization of the Governance Boundary.

Authoritative specification of Structural Explainability (SE).

Lean 4 formalization of Accountable Entities (AE): six named entity kinds and their mapping to six identity regimes.

Lean 4 formalization of the exchange protocol schemas.

Authoritative specification of the Evolution Protocol (EP).

Administrative tooling and automation for enforcing Structural Explainability (SE) standards across repositories.

Invariant primitives and structural constants for the Structural Explainability (SE) ecosystem.

Lean 4 formalization of Structural Explainability integration, composing substrate and identity regimes into cross-cutting theorems, traceability, and system-level invariants.

Authoritative specification of Accountable Entities (AE).

Paper establishing that for an ontological substrate to remain neutral and stable under allowable frameworks that include persistent disagreement, causal or normative commitments cannot be part of the substrate itself.

Lean 4 formalization of the Evolution Protocol schemas.