Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Consider the following statement, which type of logical fallacy is being used?

### Input:
"You can't trust what they say because they've been wrong before."

### Response:
The logical fallacy used in this statement is an Appeal to Authority. It is arguing that because the other party has been wrong before, their current statement is untrue.