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Inverse View
It is not the case that On the Geachian view, contingent future propositions lack a determinate truth value prior to the relevant events.
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Reasons For
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1.
Propositions are inherently either true or false; denying bivalence creates a truth-value gap that language cannot accommodate.
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2.
If future contingents lack truth values now, we cannot coherently assess current arguments about future scenarios as valid or invalid.
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3.
Physics suggests the universe's state at any moment determines all future states; indeterminate truth values contradict this picture.
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Reasons Against
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Reason against
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1.
If contingent future propositions had determinate truth values now, the future would be fixed and causally closed to present agents.
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2.
Our experience of deliberation and choice presupposes that future outcomes remain genuinely open until events occur.
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3.
Classical logic's law of excluded middle need not apply to statements about contingent futures without incoherence.
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