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Christian List

Craig’s Theorem and the Empirical Underdetermination Thesis Reassessed

" This paper proposes to revive the twenty-year old debate on the question of whether Craig’s theorem poses a challenge to the empirical underdetermination thesis. It will be demonstrated that Quine’s account of this issue in his paper "Empirically Equivalent Systems of the World" (1975) is mathematically flawed and that Quine makes too strong a concession to the Craigian challenge. It will further be pointed out that Craig’s theorem would threaten the empirical underdetermination thesis only if the set of all relevant observation conditionals could be shown to be recursively enumerable — a condition which Quine seems to overlook —, and it will be argued that, at least within the framework of Quine’s philosophy, it is doubtful whether this condition is satisfiable. "
From Disputatio

Graham Priest

Dialetheism and paraconsistency

"A dialetheia is a true contradiction, a statement, A, such that both it and its negation, A are true. Hence, dialeth(e)ism is the view that there are true contradictions. Dialetheism opposes the so-called Law of Non-Contradiction (LNC) (sometimes also called the Law of Contradiction): for any A, it is impossible for both A and A to be true. Since Aristotle's defence of the LNC, the Law has been orthodoxy in Western philosophy. Nonetheless, there are some dialetheists in the history of Western Philosophy. Moreover, since the development of paraconsistent logic in the second half of this century, dialetheism has now become a live issue once more [ ... ]".
From Stanford Encyclopedia

Witold Marciszewski

Two Leibniz's Legacies

"[ ... ] Let us start from a comparison of Leibniz views to those of Rene Descartes (1596-1650). Why should we start in this way? The answer is as follows. There are two Leibniz's views, to be discussed in this essay, which oppose each other, namely his (i) explicit belief in the possibility of automation of the processes of producing knowledge, and his (ii) implicit questioning of the same possibility because of the role attributed by him to perception as characteristic of organic life [ ...]".
From Mathesis Universalis