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Fallacy Library Appeal to Ignorance
Informal fallacy

Appeal to Ignorance

Claims something is true or false simply because it has not been proven otherwise.

Definition

Claims something is true or false simply because it has not been proven otherwise.

Example
No one has proven that the software is unsafe, so it must be safe.
Extended explanation

How to think about it:

Claims something is true or false simply because it has not been proven otherwise. In practice, the key question is whether the conclusion is supported by evidence and logic, or whether it depends on this reasoning shortcut instead.

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