الأول: ما يلزم تصوره من تصور الملزوم كالبصر للعمى.
The first kind is where conceiving the subject entails conceiving the correlate, as the concept of sight is required in understanding blindness.
Blindness is understood as a privation of sight, so grasping blindness necessarily involves the meaning of sight.
This is the narrower sense of an evident concomitant: the very concept of the subject brings the related concept to mind without first combining two separately grasped meanings in an additional judgment.