What does the phrase “you can’t prove a negative” actually mean?

Question

What does the phrase “you can’t prove a negative” actually mean?

In: 1149

Answer 1

It’s only applicable in a scientific sense. The concept has to be tangible. The typical phrase “prove Bigfoot doesn’t exist” is unprovable.

However intangible concepts can be proven through a negative. Otherwise no one could argue they “didnt” commit a crime.