English

Variable binding and substitution for (nameless) dummies

Logic in Computer Science 2024-08-07 v6

Abstract

By abstracting over well-known properties of De Bruijn's representation with nameless dummies, we design a new theory of syntax with variable binding and capture-avoiding substitution. We propose it as a simpler alternative to Fiore, Plotkin, and Turi's approach, with which we establish a strong formal link. We also show that our theory easily incorporates simple types and equations between terms.

Cite

@article{arxiv.2209.02614,
  title  = {Variable binding and substitution for (nameless) dummies},
  author = {André Hirschowitz and Tom Hirschowitz and Ambroise Lafont and Marco Maggesi},
  journal= {arXiv preprint arXiv:2209.02614},
  year   = {2024}
}
R2 v1 2026-06-28T00:49:01.416Z