English

Undecidable iterative propositional calculus

Logic 2015-04-23 v1

Abstract

In this paper, we consider iterative propositional calculi, which are finite sets of propositional formulas together with the rules of modus ponens and weak substitution (when formula being substituted must be already inferred). We construct an undecidable iterative propositional calculus using axioms in 3 variables. Particulary, we show that the general problem of derivability for these calculi is undecidable.

Keywords

Cite

@article{arxiv.1504.05728,
  title  = {Undecidable iterative propositional calculus},
  author = {Grigoriy V. Bokov},
  journal= {arXiv preprint arXiv:1504.05728},
  year   = {2015}
}

Comments

10 pages, in Russian

R2 v1 2026-06-22T09:20:21.868Z