 Avicenna had a different attitude to Aristotle’s logic than logicians before him. He did not think that Aristotle was necessarily right. Aristotle had a lot of intuitions about logic that do not all fit together into a coherent whole. They had to be worked out and Avicenna believed that when that happened, it would become clear that Aristotle’s logic was only a fragment of a much larger system. After Avicenna, the general character of Arabic logic was no longer Aristotelian but Avicennan, which is to say that the texts drawn upon by most logicians were no longer Aristotle’s but Avicenna’s (with the notable exception of Averroes, known to the Latin tradition as ‘the Commentator’, i.e., on Aristotle). One work of Avicenna in particular became important for subsequent logicians: what is known as Al-Ishârât wa’l Tanbîhat in Arabic and Pointers and Reminders in English — or Remarks and Admonitions in S. Inati’s translation (Avicenna 1984). 