1. Determine whether or not the following arguments are valid. If they are valid, thern state the rules of inference used to prove validity. If they are invalid, outline precisely why they are invalid. (a) Sue has a computer and John knows how to play minecraft. Everyone that has a computer knows how to play minecraft. Therefore, Sue knows how to play minecraft and John has a computer. (b) Everyone who knows how to program in Java also knows how to program in C++ Everyone who knows how to program in Python also knows how to program in Java. A student knows how to program in Python. Therefore, at least one student knows how to program in C++ (c) If John can program in Java then he can also program in C++. Everyone that can program in C++ has a job at google. Therefore, if John can program in Java, then he has a job at google. (d) Sue has a laptop. Bob does not have a laptop. Tom has an XBox. Not everyone that has an XBox has a laptop. Every student has a laptop. Therefore, Bob is not a student or Sue is a studen