反例外論何以生成？－從邏輯常項的劃界看

邏輯反例外論作為一種新思潮，有多方面可能的歷史和理論動因。本文選擇「邏輯常項劃界」問題（即「什麼可以什麼不可以歸屬邏輯常項」）作為切入點，結合現代邏輯的發展史以及當代邏輯哲學中的熱點爭議，試圖從微觀視角考察和論證「邏輯例外論」所遭遇的種種深層次困境，進而揭示「反例外論」何以具有理論吸引力。在反例外論的邏輯觀念下，邏輯常項依舊在當代邏輯及其應用領域保有重要地位，但此種重要性建立在非先驗選定的一種邏輯詞彙表之上。

關鍵字

邏輯常項；邏輯例外論；反例外論；邏輯詞彙表；先驗性

並列摘要

Anti-exceptionalism about logic is multi-motivated historically and theoretically. This paper chooses to explore its rise from the perspective of demarcating logical constants, trying to consider various deep difficulties of exceptionalism about logic and thereby to show the theoretical appeal of anti-exceptionalism about logic, in view of some historical facts of modern logic and recent debates in philosophy of logic. In the framework of anti-exceptionalism about logic, an important role of logical constants played in philosophy and the sciences can be retained, but it is relative to a non-a-priori adjudication on the matter of logical vocabulary.