Abstract

Sandra Lapointe: Bolzano, Quine, and Logical Truth: According to the standard interpretation, the similarity between Bolzano and Quine comes from the fact that they are both “demarcating logic […] with the help of a set of logical particles which are held constant, while the other non‐logical expressions are freely substituted for each other.” This interpretation assumes that Bolzano and Quine share at least some substantial views about what makes a term a “logical” term. My paper has four parts. First, I give some background to Bolzano's theory, focusing on his views on syntax and form. Second, I show why it is mistaken to assume that Bolzano and Quine mean the same when they speak of logical concepts/words. Third, I discuss Bolzano's views on logical truth and sentences that can be turned into logical truth by putting synonyms for synonyms and compare them to Quine's. I conclude by asking whether Bolzano's theory succeeds where Quine fails. I answer, with a twist, in the affirmative.