In this Wiki article on aliasing, the following statement is made:
But then, two sentences later, we find this:
Now hold on a minute! Is that not the opposite of we’re told in the first quote above? The first quote says that if signals become indistinguishable, that’s aliasing. But the second quote is saying that if the image (i.e. signal) differs from the original, then that’s an alias.
Can someone set me straight, please? Is it me or Wiki (or both) that’s mixed up?