.Which of the following argument is not valid? A. If I have dark skin, then I am not beautiful. I have dark skin. Therefore, I am not beautiful. B. If the housing market crashes, then all of my investments will suffer. My investments have notsuffered. Therefore, the housing market has not crashed. C. If the price of fuel is cheap, then the price of commodities is also cheap. The price of fuel is notcheap. Therefore, the price of commodities is also not cheap. D. If the solution turns blue litmus paper red, then the solution contains acid. The solution does not contain acid, So, the solution does not turn blue litmus paper red.

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Q: Which of the following statements is correct?

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Logic and Proofs

Discrete mathematics deals with the separated values of data such as integers. It is widely used in the practical field of computer science and mathematics. By knowing discrete mathematics one can improve their reasoning and problem-solving capabilities. Discrete mathematics became popular after the boom of computers which operate in discrete steps and store data in discrete bits. It also useful in studying computer programming, algorithms, and cryptography.