The reasoning behind
the engineering.

FOUNDATIONS · DEPENDENT TYPES · 5 min read

When your knowledge carries its own proof

Move from a graph that stores claims to an interface that requires evidence for the invariants you care about.

LEAN + ELPI · REASONING · 5 min read

Let logic search. Let Lean check.

Higher-order terms make binders and relations first-class. Certificates separate finding an answer from trusting it.

DEEP DIVE · RDF / OWL / SHACL · 5 min read

The semantic stack, with evidence at every boundary

RDF, RDFS, SPARQL, OWL profiles, and SHACL answer different questions. LeanRDF gives those questions explicit semantics.

GRAPH ENGINEERING · ARCHITECTURE · 5 min read

Three graph foundations. One explicit contract.

TypeDB, LadybugDB, and RDF serve different modelling needs. Connect their guarantees deliberately rather than treating them as interchangeable layers.

AGENT MEMORY · TRUST · 5 min read

What a certified agent may honestly claim

Proofs can make reasoning auditable. Their assumptions, inputs, and connection to external actions still need an explicit design.