Denying the correlative
Denying the correlative is a mistake in logic where a person tries to create a third possibility where there are only two. For example if a policeman asked a suspect if he stole money or did not and the suspect changes the subject to whether the money exists. Even if the money does not exist, the suspect either stole it or did not. It is the opposite of the false dilemma, which tries to reduce options to only two.