2. Define a function f : N → N by the rule f(n) = Lyn]. Write down the set PreImf({2,3}) in roster form. (Reminder: [x] denotes the floor of x, that is, the unique integer k such that k

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2.
Define a function f : N → N by the rule f(n) = lyn]. Write down the set PreImf({2,3})
in roster form.
(Reminder: [x] denotes the floor of x, that is, the unique integer k such that k < x < k + 1.)
Transcribed Image Text:2. Define a function f : N → N by the rule f(n) = lyn]. Write down the set PreImf({2,3}) in roster form. (Reminder: [x] denotes the floor of x, that is, the unique integer k such that k < x < k + 1.)
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