•  1
    How contingent and how a priori are contingent a priori truths?
    Studia Semiotyczne—English Supplement 28 25-56. 2016.
    In the presented article, I have analyzed the famous Saul Kripke statement that some a priori truths are contingent. I show, that despite Kripke’s thesis, in the historical understanding of contingency, the notions of contingency and apriority are in deep conflict with each other. In this understanding of contingency, the past, which can be known a priori, is not contingent, and the future, which is contingent, has difficulty acquiring a priori knowledge. Having stated Kripke’s thesis more preci…Read more
  •  4
    The Problem of Index-Initialisation in the Tempo-Modal Semantics
    Studia Semiotyczne—English Supplement 30 21-41. 2019.
    In Kripke-semantics for modal logic, the truth value of a sentence depends on the choice of a semantic index. It means that application of such semantics to natural language analysis requires indication of an index relevant for semantic analysis. It is commonly accepted that the relevant index is initialised by the context of an utterance. The idea has been rejected by the semanticists investigating tempo-modal languages in the framework of indeterminism, which generated the problem of initializ…Read more
  •  1
    Problem ustalania indeksu w semantyce temporalno-modalnej
    Studia Semiotyczne 31 (1): 109-130. 2017.
    W ramach semantyk Kripkego dla języków modalnych wartość logiczna zdania może zmieniać się wraz ze zmianą parametru indeksu semantycznego. Oznacza to, że stosując tego typu semantykę do analizy zdań języka naturalnego, musimy wskazać indeks istotny dla analizy semantycznej. Zwykło się przyjmować, że odpowiedni indeks jest ustalany przez kontekst wypowiedzi. Pomysł ten został odrzucony przez semantyków analizujących języki temporalno-modalne w kontekście indeterminizmu, co wygenerowało problem us…Read more
  • Jak przygodne i jak a priori są przygodne prawdy a priori?
    Studia Semiotyczne 28 (1): 145-172. 2015.
    W artykule poddaję analizie słynne twierdzenie Saula Kripkego, że niektóre prawdy a priori są przygodne. Pokazuję, że wbrew tezie Kripkego, przy historycznym rozumieniu przygodności, pojęcia przygodności i aprioryczności stoją ze sobą w głębokim konflikcie. Przy tym rozumieniu przygodności przeszłość, którą można poznać a priori, nie jest przygodna, a o przyszłości, która jest przygodna, trudno zdobyć wiedzę a priori. Doprecyzowawszy tezę Kripkego, proponuję trzy sposoby jej obrony w kontekście …Read more
  •  55
    Back to the actual future
    Synthese 197 (5): 2193-2213. 2020.
    The purpose of the paper is to rethink the role of actuality in the branching model of possibilities. We investigate the idea that the model should be enriched with an additional factor—the so-called Thin Red Line—which is supposed to represent the single possible course of events that gets actualized in time. We believe that this idea was often misconceived which prompted some unfortunate reactions. On the one hand, it suggested problematic semantic models of future tense and and on the other, …Read more
  •  38
    Some Problems with the Russellian Open Future
    Acta Analytica 33 (4): 413-425. 2018.
    In a recently published paper, Patrick Todd (2016, 'Future contingents are all false! On behalf of a Russellian open future') advocates a novel treatment of future contingents. On his view, all statements concerning the contingent future are false. He motivates his semantic postulates by considerations in philosophy of time and modality, in particular by the claim that there is no actual future. I present a number of highly controversial consequences of Todd’s theory. Inadequacy of his semantics…Read more
  •  230
    Towards a new theory of historical counterfactuals
    In Pavel Arazim & Michal Dancak (eds.), Logica Yearbook 2014, College Publications. pp. 293-310. 2015.
    We investigate the semantics of historical counterfactuals in indeterministic contexts. We claim that "plain" and "necessitated" counterfactuals differ in meaning. To substantiate this claim, we propose a new semantic treatment of historical counterfactuals in the Branching Time framework. We supplement our semantics with supervaluationist postsemantics, thanks to which we can explain away the intuitions which seem to talk in favor of the identification of "would" with "would necessarily".
  •  168
    A future for the thin red line
    Synthese 188 (1): 117-142. 2012.
    The thin red line ( TRL ) is a theory about the semantics of future-contingents. The central idea is that there is such a thing as the ‘actual future’, even in the presence of indeterminism. It is inspired by a famous solution to the problem of divine foreknowledge associated with William of Ockham, in which the freedom of agents is argued to be compatible with God’s omniscience. In the modern branching time setting, the theory of the TRL is widely regarded to suffer from several fundamental pro…Read more
  •  255
    The Truth About the Future
    Erkenntnis 79 (S3): 365-401. 2014.
    There is a long-standing disagreement among Branching-Time theorists. Even though they all believe that the branching representation accurately grasps the idea that the future, contrary to the past, is open, they argue whether this representation is compatible with the claim that one among many possible futures is distinguished—the single future that will come to be. This disagreement is paralleled in an argument about the bivalence of future contingents. The single, privileged future is often c…Read more