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Pre-supposing?

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<strong>Pre</strong>-<strong>supposing</strong><br />

• . ψ = ‘Mary is very strong’ CAUSE<br />

−→ φ = ‘Mary can lift the rock’<br />

ABD<br />

. ψ = ‘Mary has moved the rock’ −→ φ = ‘Mary is very strong’<br />

. ψ = ‘Mary is in the room’ ⇒ φ = ‘someone is in the room’<br />

If ψ holds at w at t, φ also holds, but, then, ψ and φ also hold at w<br />

at t − 1.<br />

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