 Be that as it may, deductive arguments have occupied a special place in philosophy and the sciences, ever since Aristotle presented the first fully-fledged theory of deductive argumentation and reasoning in the Prior Analytics (and the corresponding theory of scientific demonstration in the Posterior Analytics; see  Historical Supplement).  The fascination for deductive arguments is understandable, given their allure of certainty and indubitability. The more geometrico (a phrase introduced by Spinoza to describe the argumentative structure of his Ethics as following “a geometrical style”—see entry on  Spinoza)  has been influential in many fields other than mathematics. However, the focus on deductive arguments at the expense of other types of arguments has arguably skewed investigations on argument and argumentation too much in one specific direction (see (Bermejo-Luque 2020) for a critique of deductivism in the study of argumentation).