[CHAPTER XI]
POINTS AND STRAIGHT LINES
[41. Stations]. 41.1 The fact that an event is 'cogredient' with a duration is a fundamental fact not to be explained purely in terms of extension. It has been pointed out in [Part II] that the exact concept of cogredience is 'Here throughout the duration' or 'There throughout the duration.' Let this fundamental relation of finite events to durations be denoted by '
,' and let '
' mean '
is a finite event which is cogredient with the duration
.'