English

Parallelism Theorem and Derived Rules for Parallel Coherent Transformations

Category Theory 2019-07-17 v1 Computation and Language

Abstract

An Independent Parallelism Theorem is proven in the theory of adhesive HLR categories. It shows the bijective correspondence between sequential independent and parallel independent direct derivations in the Weak Double-Pushout framework, see [2]. The parallel derivations are expressed by means of Parallel Coherent Transformations (PCTs), hence without assuming the existence of coproducts compatible with M as in the standard Parallelism Theorem. It is aslo shown that a derived rule can be extracted from any PCT, in the sense that to any direct derivation of this rule corresponds a valid PCT.

Keywords

Cite

@article{arxiv.1907.06585,
  title  = {Parallelism Theorem and Derived Rules for Parallel Coherent Transformations},
  author = {Thierry Boy de la Tour},
  journal= {arXiv preprint arXiv:1907.06585},
  year   = {2019}
}

Comments

16 pages

R2 v1 2026-06-23T10:21:22.428Z