Proof The Bible Is True

Rather than accept what the Bible says about who wrote Genesis (Moses), nearly all liberal Bible colleges and seminaries (and sadly some which profess conservative evangelical doctrine) teach the 'documentary hypothesis' (also known as the 'JEDP hypothesis') instead. So what is this hypothesis and does it actually answer the question of "Who wrote Genesis?"?

Related content
Did Moses really write Genesis? (http://creation.com/did-moses-really-write-genesis)
Who Wrote Genesis? Are the Toledoth Colophons? (http://creation.com/who-wrote-genesis-are-the-toledoth-colophons)