 The medievals discovered what is now usually referred to as Curry’s Paradox, in the form “If this conditional is true then a man is an ass” (see Read 2002: section 9), or in its contraposed form, “If God exists then some conditional is false” (where this is the only conditional: Albert [AS-I]: 359); or in the form of an inference (consequentia), nowadays dubbed “V-Curry”, “This inference is valid so you are an ass” (see the discussion in  Section 3.9  below). There were also epistemic paradoxes, such as “You do not know this proposition” (Bradwardine [B-I]: 139): you do not know it, for if you did, it would be true and you would not know it. But now you must realise that you do know it. Such insolubles can involve doubt as well as knowledge, e.g., “Socrates knows the proposition written on the wall to be doubtful to him” (see  note 32).  Further insolubles arise from the medieval theory of (logical)  Obligations,  e.g., “Something proposed is denied by you” (Bradwardine [B-I]: 125), and “The king is sitting or a disjunctive doubt is proposed” (Bradwardine [B-I]: 151)—in the theory of obligations, the respondent is taken never to know whether the king is sitting.