 The reference to “order” must owe something to Aristotle’s remark at Topics 156a22–26 that in a debate, the questioner can sometimes hoodwink the responder by asking the questions in the wrong order. But by bringing the notion of order into the definition of syllogism itself, al-Fārābī opens up a new chapter in logic (see Hodges 2018 on this and Avicenna’s development of the theme). 