Inductive Logic as Explication: The Evolution of Carnap’s Notion of Logical Probability

According to a popular interpretation, Carnap’s interpretation of probability had evolved from a logical towards a subjective conception. However Carnap himself insisted that his basic philosophical view of probability was always the same. I address this apparent clash between Carnap’s self-identification and the subsequent interpretations of his work. Following its original intentions, I reconstruct inductive logic as an explication. The emerging picture is of a versatile linguistic framework, whose main function is not the discovery of objective logical relations in the object language, but the stipulation of conceptual possibilities. Within this representation, I map out the changes that the project went through. Seen from such an explication-based perspective, inductive logic becomes quite hard to categorize using the standard labels.

Janina Hosiasson-Lindenbaum on Analogical Reasoning: New Sources

Janina Hosiasson-Lindenbaum is a known figure in philosophy of probability of the 1930s. A previously unpublished manuscript fills in the blanks in the full picture of her work on inductive reasoning by analogy, until now only accessible through a single publication. In this paper, I present Hosiasson’s work on analogical reasoning, bringing together her early publications that were never translated from Polish, and the recently discovered unpublished work. I then show how her late work relates to Rudolf Carnap’s approach to “analogy by similarity” developed in the 1960s. Hosiasson turns out to be a predecessor of the line of research that models analogical influence as inductive relevance. A translation of Hosiasson’s manuscript concludes the paper.

Individualism and the Objects of Psychology

Scheman argues against individualism, the thesis that psychological states are intrinsic objects that can exist independently from the context in which the individual lives. Scheman argues that while individualism is taken as de facto theory about the ontology of psychological objects given its alignment with physicalism, individualism is an ideological position rooted in a patriarchal system. According to Scheman, individualism prevents us from wholly considering psychological objects in relation to socially embedded norms. Scheman advocates for an anti-individualist position by examining how individualist approaches arise as a result of an embedment of liberal individualism and patriarchal culture.