 However, it may be disputed that Prior’s Ockhamist system fits the ideas formulated by William of Ockham completely. Although many of Ockham’s original ideas are satisfactorily modelled in Prior’s Ockhamist system, Prior’s system (1967) lacks a proper representation of the notion of ‘the true  future’.[4]  This was in fact one of the most basic ideas in Ockham’s world view. Ockham believed that there is truth (or falsity) also of statements about the contingent future, which human beings cannot know, but which God knows. Prior’s Ockhamist system cannot be said to include more than the idea of a proposition being true relative to a moment of time and a chronicle. A proper theory in accordance with William of Ockham’s ideas would have to include the idea of a proposition being true relative to a moment of time (without any specification of a chronicle). Let us therefore investigate a truth-theory which includes the idea of a true future in this sense.