Machine-Checked Simplicial Chain Complexes over F_2 and Metric Filtration Invariants for Relational Resolution Theory in Lean 4
- 1Independent Researcher
Abstract
We present a self-contained, machine-checked formalization in the Lean 4 theorem prover (Mathlib4) of the core algebraic-topological invariants underlying discrete metric filtrations in Relational Resolution Theory (TRR 3.0). Specifically, we formalize: (1) the monotonicity and downward closure of Vietoris-Rips metric filtration complexes over arbitrary types with decidable equality, (2) the ungraded simplicial chain module modeled via finitely supported functions, (3) the linearity and nilpotency (d^2 = 0) of the simplicial boundary operator, (4) the fundamental cycle inclusion (im d <= ker d), and (5) grading and subcomplex invariance. All ten theorems in the development are verified with zero unproven assumptions (sorryAx is absent) and depend solely on the standard axioms [propext, Classical.choice, Quot.sound].
The underlying algorithmic pipeline and machine-checked formalization for TRR 3.0 are strictly licensed under the GNU Affero General Public License v3.0 (AGPL-3.0). Source code repository: https://github.com/RW-101/TRR3-formalization-
Related
- Complementary vectors of simplicial complexes
- Adaptive Uncertainty Quantification on Simplicial Complexes with Conformalized Simplicial Neural Networks
- Homological critical points for hypergraphs and simplicial complexes
- Simplicial Complexes of Antichains in Root Posets and Related Combinatorics of Dyck Paths
- Crossing numbers of simplicial complexes
BibTeX
@misc{weinberg2026machinechecked,
title = {{Machine-Checked Simplicial Chain Complexes over F_2 and Metric Filtration Invariants for Relational Resolution Theory in Lean 4}},
author = {Ronen Weinberg},
howpublished = {Zenodo},
year = {2026},
month = oct,
doi = {10.5281/zenodo.23448711},
url = {https://zenodo.org/records/23448711},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Machine-Checked Simplicial Chain Complexes over F_2 and Metric Filtration Invariants for Relational Resolution Theory in Lean 4
AU - Ronen Weinberg
PY - 2026
DA - 2026/10/18
PB - Zenodo
DO - 10.5281/zenodo.23448711
UR - https://zenodo.org/records/23448711
AB - We present a self-contained, machine-checked formalization in the Lean 4 theorem prover (Mathlib4) of the core algebraic-topological invariants underlying discrete metric filtrations in Relational Resolution Theory (TRR 3.0). Specifically, we formalize: (1) the monotonicity and downward closure of Vietoris-Rips metric filtration complexes over arbitrary types with decidable equality, (2) the ungraded simplicial chain module modeled via finitely supported functions, (3) the linearity and nilpotency (d^2 = 0) of the simplicial boundary operator, (4) the fundamental cycle inclusion (im d <= ker d), and (5) grading and subcomplex invariance. All ten theorems in the development are verified with zero unproven assumptions (sorryAx is absent) and depend solely on the standard axioms [propext, Classical.choice, Quot.sound]. The underlying algorithmic pipeline and machine-checked formalization for TRR 3.0 are strictly licensed under the GNU Affero General Public License v3.0 (AGPL-3.0). Source code repository: https://github.com/RW-101/TRR3-formalization-
ER -