  The Arabic originals of these two intimately related treatises were published for the first time by Pourjavady &amp; Schmidtke (2006); an annotated translation of the Ithbat was published by Langermann (2017).  In these writings, Ibn Kammuna pays far less attention to questions of cognition than he does in his other writings. However, here as elsewhere, he takes note of the abilities of gifted people to grasp issues that remain recalcitrant to others who are not so endowed. Here again Ibn Kammuna connects this special mode of cognition with tajriba, repeated experience. In addition, he emphasizes here that the fruits of this special type of knowledge can be fully appreciated only by someone who has experienced them. It is thus striking that he does not employ the technical term ḥads in the course of his exposition, or, indeed, anywhere at all in these two writings.