 Kilvington’s Sophismata, written before 1325, is his only logical work. A sophisma or sophism is neither a standard paradox of disputation nor a sophistical argument but a statement the truth of which is in question. The first sophism Kilvington discusses typifies the basic structure: a statement of the sophism sentence followed by a case or hypothesis, arguments for and against the sophism sentence, the resolution of the sophism sentence and reply to the arguments on the opposing side, ending with an introduction to the next sophism sentence.