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abergquist (181) [Avatar] Offline
In Exercise 2.4 on p. 43, the first True/False question is:

Mutable data can change over time: T | F

You give the answer as:


but it should be:


per the following that you write on p. 42:

There are two general types of state, mutable and immutable. A simple way to think about the difference between immutable state and mutable state is to think in terms of time. Can something change over time? If so, it can be called mutable.