Heidegger's Kantian idealism revisited

I offer a revised interpretation of Heidegger's ‘ontological idealism’ – his thesis that being, but not entities, depends on Dasein – as well as its relationship to Kant's transcendental idealism. I build from my earlier efforts on this topic by modifying them and defending my basic line of interpretation against criticisms advanced by Cerbone, Philipse, and Carman. In essence, my reading of Heidegger goes like this: what it means to say that ‘being’ depends on Dasein is that the criteria and standards that determine what it is to be, and hence whether an item (or anything at all) is, are conceptually interwoven with, and hence conceptually dependent upon, a structure that could not obtain without Dasein (namely, time). For this reason, to ask whether entities (e.g., nature) would exist, even if we (Dasein) did not, is either to ask an empirical question with an obvious negative answer (viz., According to our best current theories, does everything depend causally upon us?), or to ask a meaningless question with no answer (viz., If we suspend or discount the standards and criteria that determine whether anything is, does anything exist?). In short, Heidegger is an empirical realist, but neither a transcendental idealist nor realist.     

皮尔士存在图研究

存在图是现代逻辑草创时期皮尔士在其关系演算和谓词逻辑的基础上发展起来的、表示逻辑句子和推理的图式系统,是皮尔士用来证明其形而上学的工具,它的重要性直到计算机表示的图示推理得到发展后才得以确认。本文首先以经典逻辑为背景研究存在图的各个部分,然后讨论存在图在当代许多学科领域的回应和应用以及它在逻辑史上的地位,最后考察存在图对于皮尔士形而上学的意义。     

Prior's Grappling with Peirce's Existential Graphs

A. N. Prior very much admired the logic and philosophy of C.S. Peirce. In the spring of 1962 Prior went to Chicago to study Peirce's ideas. One of the topics that caught his attention was Peirce's existential graphs. This interest continued when he returned to England. In this paper Prior's grappling with the existential graphs will be discussed.     

Game-theoretical semantics for Peirce's existential graphs

In this paper, a game-theoretical semantics is developed for the so-called alpha part of Charles S. Peirce's System of Existential Graphs of 1896. This alpha part is that portion of Peirce's graphs that corresponds to propositional logic. The paper both expounds a game-theoretical semantics for the graphs that seems close to Peirce's own intentions and proves for the alpha part of the graphs that this semantics is adequate.     

Lucy Allais on transcendental idealism

Lucy Allais’s Manifest Reality offers an attractive new interpretation of Kant’s transcendental idealism. Kantian appearances are known through essentially manifest properties, but those properties are construed as belonging ultimately to things in themselves with intrinsic natures. This position can offer a nice account of the sense in which appearances and things in themselves are identical (different aspects of the same underlying things) and a metaphysically plausible way to construe appearances as strictly partially mind-dependent. The position is less convincing when it comes to explaining the sense in which appearances and things in themselves remain non-identical. I argue that such a non-identity thesis was in fact crucial to Kant’s use of idealism to explain the possibility of synthetic a priori knowledge, to his account of the apriority of the representation of space, and to his anti-Leibnizian point that our mathematical and scientific cognition provides not confused representation of underlying (non-spatial) things in themselves, but perfectly exact and strictly true cognition of something else. In closing, I suggest that the hylomorphic nature of Kant’s idealism points toward an alternative conception of the partial mind-dependence of appearances.     

Meaning relativism and subjective idealism

Synthese - The paper discusses an objection, put forward by—among others—John McDowell, to Kripke’s Wittgenstein’s non-factualist and relativist view of semantic discourse....     

Kant,Boole and Peirce's Early Metaphysics

Charles Peirce is often credited for being among the first, perhaps even the first, to develop a scientific metaphysics of indeterminism. After rejecting the received view that Peirce developed his views from Darwin and Maxwell, I argue that Peirce's view results from his synthesis of Immanuel Kant's critical philosophy and George Boole's contributions to formal logic. Specifically, I claim that Kant's conception of the laws of logic as the basis for his architectonic, when combined with Boole's view of probability, yields Peirce's metaphysics of probabilistic laws. Indeterminism provides, therefore, an excellent illustration of how Peirce attempted to use logic to clarify metaphysical problems.Since everyone must have conceptions of things in general, it is most important that they should be carefully constructed. I shall enter into no criticism of the different methods of metaphysical research, but shall merely say that in the opinions of several great thinkers, the only successful mode yet lighted upon is that of adopting our logic as our metaphysics. (W1: 490, 1866)²