>Uncertainty principles are not formally defined
In physics it seem to be pretty straight forward. For instance https://www.wolframalpha.com/input/?i=uncertainty+principle
In physics it seem to be pretty straight forward. For instance https://www.wolframalpha.com/input/?i=uncertainty+principle
For instance, a function cannot both be compactly supported and have a compactly supported Fourier transform. Or you can have other transforms, other operators than position and momentum etc.