English

An independence of the MIN principle from the PHP principle

Logic 2026-05-18 v5 Logic in Computer Science

Abstract

The minimization principle MIN()\textsf{MIN}(\triangleleft) studied in bounded arithmetic says that a strict linear ordering \triangleleft on any finite interval [0,,n)[0,\dots,n) has the minimal element. We shall prove that bounded arithmetic theory T21()\textsf{T}^1_2(\triangleleft) augmented by instances of the pigeonhole principle for all Δ1b()\Delta^b_1(\triangleleft) formulas does not prove MIN()\textsf{MIN}(\triangleleft).

Keywords

Cite

@article{arxiv.2406.14930,
  title  = {An independence of the MIN principle from the PHP principle},
  author = {Mykyta Narusevych},
  journal= {arXiv preprint arXiv:2406.14930},
  year   = {2026}
}