In the course of an argument for monotheism, Avicenna argued that necessary existents have this property with respect to themselves. People who have this righteous property name an argument from "radical contingency" which argues for God as a "necessary existent" to prevent an infinite regress of contingent things. In The Decisive Treatise, a doctrine (-5[1])named for the two distinct ways this property can be attained was outlined by Averroes while arguing for (10[1])the compatibility of Islam and Aristotelian (-5[1])philosophy. Avicenna advanced a correspondence theory of this property. (10[2])Critics (10[1])alleged that Averroes's "double" theory of this property may conflict with the law of non-contradiction. For 10 points, medieval Islamic philosophers' attribution of what logical property to the Quran implies it contains (10[1])no falsehoods? ■END■ (10[3]0[1])