Topic summary
Unfalsifiable
Extracted from the Wikipedia article Falsifiability.
Unfalsifiable statements
A simple example of a non-basic statement is "This angel does not have large wings." It is not a basic statement, because though the absence of large wings can be observed, no technology (independent of the presence of wings) exists to identify angels. Even if it is accepted that angels exist, the sentence "All angels have large wings" is not falsifiable.