Philosophers often talk about the things we say, or believe, or think, or mean. The things are often called ‘propositions’. A proposition is what one believes, or thinks, or means when one believes, thinks, or means something. Talk about propositions is ubiquitous when philosophers turn their gaze to language, meaning and thought. But what are propositions? Is there a single class of things tha...

Stephen Schiffer 2003 presents six arguments against the Fregean model of propositions, according to which propositions are (a) the referents of that-clauses and (b) structured entities made out of concepts. Schiffer advances an alternative view: propositions are unstructured pleonastic entities. My purpose is to argue in favour of the main tenets of the Fregean model by countering each of Schi...

As has already been pointed out by Birkhoff and von Neumann, quantum logic can be formulated in terms of projective geometry. In three-dimensional Hilbert space, elementary logical propositions are associated with one-dimensional subspaces, corresponding to points of the projective plane. It is shown that, starting with three such propositions corresponding to some basis {~u,~v, ~ w}, successiv...

I apply an evolutionary-historical analysis, a variation of historical analysis, to the emergence of humans’ major information processing capabilities to trace the development of information systems to establish the propositions. I identify some research questions directly arising from the three propositions and advance a case that these propositions are potentially a sufficient conceptual foun...

evidence occupies a paramount position in any logical endeavor and research article is consensually considered a predominant site of such an endeavor. one interesting area of rhetoric which addresses the source and reliability of evidence is quality metadiscourse. in this qualitative study, quality metadiscourse strategies (i.e., evidentials, hedges, boosters and disclaimers) are examined to in...

This talk is about quantum logic, and before we engage in the subject proper let me say how much I appreciate the invitation to deliver it that was extended to me by the Japanese Society for the Philosophy of Science. In particular because I feel that such a meeting is really the place that is most adequate for the discussion of these matters. Let us introduce the subject by mentioning a few ge...

Open IE methods extract structured propositions from text. However, these propositions are neither consolidated nor generalized, and querying them may lead to insufficient or redundant information. This work suggests an approach to organize open IE propositions using entailment graphs. The entailment relation unifies equivalent propositions and induces a specific-to-general structure. We create...

In this paper we provide a conceptual approach to modelling value propositions. We argue that rigorous modelling in an ontological style could improve several aspects of business. Modelling and mapping value propositions helps better understanding the value a company wants to offer its customers and makes it communicable between various stakeholders. Using a common language (ontology) in defini...