State whether the following statements are true or false:
`1 in {1,2,3}`
`asub{b , c , a}`
`{a} in {a , b , c}`
`{a , b}={a , a , b , b , a}`
The set `{x : x+8=8}`
is the null set.

Explanation

Let's analyze each statement one by one to determine whether they are true or false.

### Statement 1: `1 in {1, 2, 3}`
- **Analysis**: The statement is asking if the element `1` is a member of the set `{1, 2, 3}`. Since `1` is indeed one of the elements in the set, this statement is true.
- **Conclusion**: **True**

### Statement 2: `A in {b, c, a}`
- **Analysis**: Here, we need to check if the element `A` is a member of the set `{b, c, a}`. The set contains the elements `b`, `c`, and `a`, but not `A` (note the difference in case). Therefore, this statement is false.
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