Question: [6 marks] (2) Prove that the formula ((AAB) - 0) - ((A - C) V (B - C)) is valid, using any method of your

[6 marks] (2) Prove that the formula ((AAB) - 0)
[6 marks] (2) Prove that the formula ((AAB) - 0) - ((A - C) V (B - C)) is valid, using any method of your choice other than truth-tables

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