[shkkmo]

It's not just conceptual nit picking. 'proof' and 'prove' do indeed mean something different in mathematics than they do in science. This semantic difference confuses people (you see a lot evidence of that in this thread). I think it's better to use 'evidence' rather that 'proof' and 'substantially support' rather than 'prove' when talking about science. That doesn't mean that the terms are invalid when used to talk about science, just that they are confusing to people.