Relational Hypersequent S4 and B are Cut-Free Hypersequent Incomplete [article]

Kai Tanter
<span title="2021-08-27">2021</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
We show that relational hypersequent K4, S4, KB and RB, investigated in Parisi (2020) and Burns and Zach (2020) are cut-free hypersequent incomplete. In addition, the former two are also cut-free sequent and formula incomplete.
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="">arXiv:2108.12095v1</a> <a target="_blank" rel="external noopener" href="">fatcat:tpckhy3w2bfj7ffbywbmegax2q</a> </span>
<a target="_blank" rel="noopener" href="" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="" title=" access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> </button> </a>