English

Local and global $d$-rigidity are not definable in the first order logic of graphs

Combinatorics 2025-11-11 v1 Logic

Abstract

We use Hanf locality and a result of Cruickshank, Jackson, and Tanigawa on the global rigidity of graphs of kk-circuits to prove that local and global dd-rigidity are not definable in the first order logic of graphs.

Keywords

Cite

@article{arxiv.2511.05741,
  title  = {Local and global $d$-rigidity are not definable in the first order logic of graphs},
  author = {Daniel Irving Bernstein and Nathaniel Vaduthala},
  journal= {arXiv preprint arXiv:2511.05741},
  year   = {2025}
}