Question
Prove that the following arguments are standard by constructing metaphorical proof
| $T \rightarrow W$ |
| $X \rightarrow Y$ |
| $Z \rightarrow W$ |
| $X \rightarrow A$ |
| $W \rightarrow X$ |
| $[(T \rightarrow Y)\ \&\ (Z \rightarrow A)] \rightarrow (T\ v\ Z)$ |