Argument by contradiction
Argument by contradiction is any form of argument in which the defender simply re-asserts that their position is true without addressing the substance of an attack; as such, it is a form of dismissal. It is basically the use of a naked assertion in response to a counterargument.
An argument is a connected series of statements to establish a definite proposition. ... It isn't just saying "no it isn't"!
- "No, you're wrong.": simple contradiction, unless followed by an explanation
- "Studies show that you're wrong.": argument from authority, unless data from those studies is introduced
- "I don't accept your hypothesis.": simple contradiction with larger words
- "We don't believe this is true.": argument from authority sprinkled lightly with appeal to common belief
This might be better described as argument by repetition.