PHL205H1 Lecture Notes - Problem Of Future Contingents, Contin
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BOETHIUS ON FOREKNOWLEDGE
 The problem of (Divine) foreknowledge:
(F1) If Schooses Afreely, then S’s choice of Awas not necessitated, i.e. not necessary.
(F2) Suppose that Schooses A.
(F3) God knows in advance that Swill choose A. Proof:
(F3a) God is omniscient.
(F3b) All times, including the future (relative to us), are now present to God.
(F3c) God knows what happens at all times, including at times future relative to us.
(F3d) If Schooses Aat some time, then at times earlier relative to us, God knows
that Swill choose A.
(F3e) Hence if Schooses Aat some time, then God knows in advance that Swill
(F4) Whatever God knows must be so.
(F5) Thus Swill have to choose A.
(F6) Thus S’s choice of Ais necessary, i.e. necessitated by God’s foreknowledge.
(F7) Thus S’s choice of Ais not free.
(F8) This line of argument holds for any agent and any choice.
Therefore: There is no free choice.
Boethius notes that by (F4), whatever God knows must be so; hence it is not possible for it to
be otherwise. Yet that is just to deny any freedom, or more exactly, to deny that there is any
genuine alternative possibility. Thus there is no human freedom; providence should make fatal-
ists of us all. Boethius is a believer in freedom, though, and therefore takes another approach:
he maintains that foreknowledge neither compels nor necessitates (5.4.4–9). He spends most of
5.4–6 working out the details of this approach, which he does by considering two difﬁculties at
length. Before turning to the details, though, we should be clear on his strategy. Boethius does
think that there is foreknowledge. His move is to deny that foreknowledge has the consequence
of being freedom-cancelling. The strategy is novel but logically sound.
 Note that there are really two separate problems involved here: (a) Does God’s foreknowl-
edge turn future contingents into (noncontingent) necessary outcomes? (b) How is knowledge
possible of something future that is genuinely contingent? Boethius, to his credit, keeps (a) and
(b) distinct, and you should keep them in mind as when considering his responses to the two
 The First Difﬁculty (5.4.10–14): Foreknowlege points to some underlying necessity. That is, it
wouldn’t be possible that there be foreknowlege if there weren’t some fundamental necessitating
condition that makes events be as they will be. Boethius replies (5.4.15–20) that future contin-
gents need be no more necessitated than present contingents; after all, every present contingent
was a future contingent earlier. And just as present contingents are not necessitated, as we can
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