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Question 6: Representation in FOL...... Consider a world with balls and boxes, and the following relations: 15 points ball(r)

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Answer #1

1)some balls are not in any box

3ball(x) -> ~box(x). ( Think 3 as inverted E)

2)every box hax some balls in it

¥box(x) => ball(x). (Think ¥ as inverted A)

3)A ball cannot have more than one color:

∃(x) [ ball(x) → color (x, y1) ∧∀ ball(x)→ ¬color (x, y1)].

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