the Muslim theologian, Al-Ghazali (Algazel). They used two logical arguments against an infinite past, the first being the "argument from the impossibility of the existence of an actual infinite", which states: "An actual infinite cannot exist." "An infinite temporal regress of events is an actual infinite." "∴ An infinite temporal regress of events cannot exist." The second argument, the "argument from the impossibility of completing an actual infinite by successive addition", states: "An actual infinite cannot be completed by successive addition." "The temporal series of past events has been completed by successive addition." "∴ The temporal series of past events cannot be an actual infinite." Both arguments were adopted by later Christian philosophers and theologians, and the second argument in particular became more famous after it was adopted by Immanuel Kant in his thesis of the first antinomy concerning time. Amount of time The Quran states that the universe was created in six ayyam (days), in verse 50:38 among others. According to verse 70:3, one day in Quran is equal to 50,000 years on Earth. Therefore, Muslims interpret the description of a "six days" creation as six distinct periods or eons. The length of these periods is not precisely defined, nor are the specific developments that took place during each period. According to Michael Cook "early Muslim scholars" believed the amount of finite time creation had been assigned was about "six or seven thousand years" and that perhaps all but 500 years or so had already passed. He quotes a tradition of Muhammad saying "in reference to the prospective duration" of the community of the Muslim companions: `Your appointed time compared with that of those who were before you is as from the afternoon prayer (Asr prayer) to the setting of the sun'". Early Muslim Ibn Ishaq estimated the prophet Noah lived 1200 years after Adam was expelled from paradise, the prophet Abraham 2342 years after Adam, Moses 2907 years, Jesus 4832 years and Muhammad 5432 years. The Fatimid thinker al-Mu’ayyad fi’l-Din al-Shirazi (d. 1078) shares his own views about the creation of the world in 6 days. He rebukes the idea of the creation of the world in 6 cycles of either 24 hours, 1000 or 50,000 years, and instead questions both how creation can be measured in units of time when time was yet to be created, as well as how an infinitely powerful creator can be limited