Clearly symbolize the hypotheses and the conclusions of the

Clearly symbolize the hypotheses and the conclusions of the argument using appropriate symbols and logical connectives. Then, write the entire argument symbolically (in the form A B). If the argument is valid, present a proof sequence. Otherwise, justify that the argument is invalid.

If Murray loses then Djokovic wins. If Berdych loses then Djokovic wins. It is impossible that Murray wins and also Berdych wins. Therefore, Djokovic wins.

Solution

So considering the facts given in above let us try to understand it by tabular form

We have three players

Now a) Murray loses Djokovic wins

b) Berdych loses then Djokovic wins

c) If Murray wins then Berdych cannot win

Now again using second statement Berdych loses then Djokovic wins hence

So by above table we can see that Djokovic wins in all situations