I was reading a great post about the assertion that god does not exist at God is a myth!. Wit this is mind, I know it that the burden of proof lays with someone that makes a positive claim. So I will make two positive claims here and prove them.
Claim : God does not exist
God defined as the god of Christianity. If this God is real then this god inspired the divine texts and as such we can look in the bible for testable claims.
Hypothesis: Mark 11:24 Therefore I tell you, whatever you ask in prayer, believe that you have received it, and it will be yours.
So here we have a claim we can test, if we ask for anything in prayer it will be granted to us. This means prayer should always work if you believe. We also know that people would not pray if they did not believe. So all prayers will be granted.
Result: Prayer does not work! Scientific studies have shown this to be the case. See the links for further information on prayer that does not work link1 and link2.
Claim : Allah does not exist
Allah defined as the god of Islam. If this Allah is real then this god
inspired the divine texts and as such we can look in the Koran for
Hypothesis: Surah 7:80-81 And Lot! (Remember) when he said unto his folk: Will ye commit abomination
such as no creature ever did before you? Lo! ye come with lust unto men instead of women. Nay, but ye are wanton folk.
Here Muhammad says that homosexuality is unnatural and that no creature engages in homosexual behavior. So if their are animals that engage in homosexual behavior then Muhammad and hence Allah are wrong. If the god of creation is wrong about their creations then surely this creator cannot exist.
Result: Homosexual behavior is seen in penguins and dolphins among other animals. So Allah was wrong and hence does not exist.
This are but two examples of multiple testable claims in divinely inspired texts. So either God/Allah is useless (and does not deserve worship) or God/Allah does not exist. I would say the latter is true.