An Agda Framework for programming language metatheory based on extrinsic typing, intrinsic scoping and de Bruijn indices.

A framework for Systems Verification of categories, Theories and Meta Theories in Lean, Rocq, C# and F#.

Cut elimination for the logic of Bunched Implications (BI), and some extensions.

Mechanized proofs in Rocq about core Kip: static semantics, dynamic semantics, type soundness, and compile-time overload elaboration.

An experimental research project developing a foundational theory of frameworks — the structures through which the human mind constructs and engages with reality.

原点学（Originology）公开文本仓库。一个关于原点、主体、关系、判断、边界、可校与文明结构的元理论系统。 Public texts for Originology: a meta-theoretical system on origin, subject, relation, judgment, boundary, calibratability, and civilization.

“Observation Theory: A Unified Meta-Theoretical Framework of Cognition - 一个统一的认知元理论框架”

The multiary lambda calculus is an extension of the ordinary lambda calculus where an applicative term has a list of terms as arguments.