In order to distinguish criterion of verifiability in principle versus practice is based on the probability of experience and if one had already experienced (a priori claim). To understand the criterion of verifiability in principle is if one made a claim that there are mountains across the moon according to Ayer this passes for in principle. (Ayer 36) This statement passes because in principle mountains can or could be across, but this is not verifiable, then it is only truthful in principle, but not in practice. In order for a claim to pass through practice, a claim could be that there is a book on top of my desk. Since I am able to verify this, then this is a claim verifiable in …show more content…
A tautology is a priori truth (Ayer 46). This means a tautological statement is before present sense experience and an analytical statement. The second undisputable proposition is an empirical hypothesis, which is a rule for the anticipated experience (Ayer 41) This claim is based on personal experience and if tested, would be correct. In regard to the existence of God and the afterlife, Ayer continues to emphasize the criterion of verifiability and alludes that both are nonsense since they are