First translate into propositional expressions and then use the rules of equivalence and inference to prove the conclusion. The crop is good, but there is not enough water. If there is a lot of rain or not a lot of sun, then there is enough water. Therefore the crop is good and there is a lot of sun. (use letters C, W, R, S) First, define your propositions using letter C, W,R, S. Then write down the argument. Then prove!