A complex inhibitor is a type of complex joint statement. It prohibits any joint statement.
Prohibition is the paramount factor in this type of statement and it applies to the whole statement.
Examples of complex prohibitions:
1. It is not true that (Ravana was incarnate or he was immortal.) ~ (R v A)
2. (Truth is defeated and untruth is victorious.) Not so. ~ (S v A)
3. It is not true that (if he is married then he is very unhappy.) ~ (P ↔ M)
Looking at the above complex joint statements, it will be seen that all the three statements are prohibitive.
Thus, in a complex prohibition statement, any one joint statement is prohibited.