Question: You are given proof sequence. Justify each step in it (meaning, write down what rule was used to derive it, and from which previously obtained

You are given proof sequence. Justify each step in it (meaning, write down what rule was used to derive it, and from which previously obtained step(s) if applies).

Argument is: A B [B (A C)] C

Proof sequence (you should substitute ? with your reasoning)

Step Reason

1. A ?

2. B ?

3. B (A C) ?

4. A C ?

5. (A) C ?

6. A C ?

7. C ?

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