First-Order Logic (FOL) addresses the issues of Propositional Logic. However, reasoning in FOL is more complex than that of propositional Logic. Hence answer the following questions (1) Write Anybody who has contact with a covid-19 patient is infected in FOL. [2 marks] (ii) Giving an example explain the meaning of 3x P(x) = Vx P(x) [2 marks] (iii) Comment on the relationship between VxVy 3z and Vy=zVx [2 marks] (iv) Write sentences All hardworking or clever students will have good results. Nimal is clever but not hardworking" in FOL and converts them into CNF. Hence use the method of contradiction to prove that Nimal will have good results. [3 marks] First-Order Logic (FOL) addresses the issues of Propositional Logic. However, reasoning in FOL is more complex than that of propositional Logic. Hence answer the following questions (1) Write Anybody who has contact with a covid-19 patient is infected in FOL. [2 marks] (ii) Giving an example explain the meaning of 3x P(x) = Vx P(x) [2 marks] (iii) Comment on the relationship between VxVy 3z and Vy=zVx [2 marks] (iv) Write sentences All hardworking or clever students will have good results. Nimal is clever but not hardworking" in FOL and converts them into CNF. Hence use the method of contradiction to prove that Nimal will have good results. [3 marks]