Melissus

Aristotle says that for Melissus (as well as for Parmenides) his premises are false and his conclusions do not follow.

What is made always has a beginning. What is not made has no beginning. This is the argument of Melissus which Aristotle declares fallacious. Being is not made. Therefore it has no beginning and consequently has no end. What has neither beginning nor end is infinite. Thus, being is infinite. But what is infinite is immobile, for it would not have anything outside of it that it could be moved. What is infinite is also one. Aristotle will also hold this, that being is one, to be unable to be true. 

Melissus held that being was infinite. It follows thus, that it has quantity. The infinite does  not exist except in quantity.