Our perceptual faculties include at least our five senses: sight, touch, hearing, smelling, and tasting. We must distinguish between an experience that can be classified as perceiving that p (for example, seeing that there is coffee in the cup and tasting that it is sweet), which entails that p is true, and a perceptual experience in which it seems to us as though p, but where p might be false. Let us refer to this latter kind of experience as perceptual seemings. The reason for making this dist