All of the above are true.
All of the above are true.
they just want to prove to themselves that they have many options
It is not clear what this question is about! What do you want to prove?
I want to prove that I can take care of myself and not have to depend on America's hard-working tax payers. So far I have.
Not necessarily. Words can also show who or what you CLAIM to be.
Tell Him
There are many reasons why you would want or need to flash a bio. You could do this to prove something.
The term that best describes a proof in which you assume the opposite of what you want to prove is 'indirect proof'.
Prove their client innocent
They want to prove or disprove myths.
Is it OK to leave bread to prove overnight. or what is the longest time I can leave bread to prove. I want to have fresh bread for breakfast
No. Any person trained in logic will tell you that 'you cannot prove a negative'. If you want to disprove the existence of fairies you first attempt to try and prove their existence. And the best you can do is to fail to prove it. The option to prove it always exists.