For hiking on the trail to be safe, it is necessary and sufficient that mangoes not be ripe along the trail and for wild bears not to have been seen in the area. Assume the following propositional variables and truth values: p: Wild pigs have been seen in the area.(True) q: Hiking is safe on the trail.(False) r: Mangoes are ripe along the trail.(False)

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Intelligent Machines

Machines that use artificial intelligence to learn from the environment and past experiences to perform better in the presence of variability and uncertainty are called intelligent machines. Intelligence develops according to environment and experience. It is human-like behavior. When the computer system or any programmed machine learns from the inputs and corresponding outputs, it can be called an intelligent machine.