The problem of communication in de se thoughts is the problem of communication of first-person or self-locating thoughts across the speakers of a conversation. The problem mainly stems from the lack of a proper account of attitude and content — an account that is supposed to explain whether or how the context of linguistic utterances is related to the semantic content of a sentence, assertion and belief. In this paper, after introducing two new semantic items, namely, almost-impossible and almost-necessary propositions, (...) that could be taken as theoretically primitive entities in the semantic framework I wish to draw, I propose an account of modified Lewisian-centered content and attitude based on the metaphysical framework of the Lewisian counterpart-theoretic semantics for quantified modal logic to the extent that the modification relies on those new semantic items. I then show that we can solve the problem by using our modified account. (shrink)

An often-cited convention for discovery-oriented behavioral science research states that the general relative seriousness of the antecedently accepted false positive error rate of α = 0.05 be mirrored by a false negative error rate of β = 0.20. In 1965, Jacob Cohen proposed this convention to decrease a β-error rate typically in vast excess of 0.20. Thereby, we argue, Cohen (unintentionally) contributed to the wide acceptance of strongly uneven error rates in behavioral science. Although Cohen’s convention can appear epistemically reasonable (...) for an individual researcher, the comparatively low probability that published effect size estimates are replicable renders his convention unreasonable for an entire scientific field. Appreciating Cohen’s convention helps to understand why even error rates (α = β) are “non-conventional” in behavioral science today, and why Cohen’s explanatory reason for β = 0.20—that resource restrictions keep from collecting larger samples—can easily be mistaken for the justificatory reason it is not. (shrink)

This thesis is a critique of Jaakko Hintikka’s reconstruction of Kantian intuition in logical and mathematical reasoning. I argue that Hintikka’s reconstruction of Kantian intuition in particular and his reconstruction of Kant's philosophy of mathematics in general fails to be successful in two ways: First, the logical formula which contains an instantiated term (henceforth, instantial term) that is introduced by the rule of existential instantiation in the ecthesis part of a proof of an argument is not even a proper singular (...) proposition whose relation to its object is supposed to be immediate. It is not a proper singular proposition because its truth conditions are general, i.e., it makes a general statement about a class of individuals of the sort instantiated- a statement whose analysis is based on quantifiers. Second, I show that certain proofs in mathematics- those in the form of reductio ad absurdum- are not captured by Hintikka’s reconstruction of Kant’s philosophy of mathematics either. (shrink)

The paper in general investigates Kant’s transcendental theory of moral psychology in its relation to Sellarsian characterization of origin of normativity with respect to the preconditions of a complete conception of humans and their actions. The complete conception of humans and their actions is a conception in which we are able to account for free human in general and for his free will in particular in accordance with the natural law. I argue that Sellars’ manifest and scientific images of a (...) person on the one hand and Kant’s empirical and intelligible character on the other hand has similar accounts for acquiring the knowledge of the source of our normative assessments. In both it is considered that manifest or empirical conception of a person within nature in general fails to provide a deductive procedure from which one can derive the complete conception of a person as a free being in itself. I further argue that any set of procedure for identifying the source of normativity and of our normative assessments cannot be provided from an ontologically oriented perspective in which we aim at establishing a naturalistic model of normativity- a model where accurate descriptions and true explanations of causal relations in the world of appearances can allow us to make sense the blameworthiness of the moral agent as the normative force applied on his actions. (shrink)