Predykaty obiektywne

The author claims that there are two kinds of predicates that are used to describe cognitive states of mind like beliefs or perception. Using some of them, one can describe the cognitive states of mind directly, whereas using some others, one can describe these states in comparison with one’s own. For example, one can say that a person has a belief or one can say that that person’s belief is according to his own beliefs. In the latter situation, he uses the predicate “to know”. The conditions that Peter uses correctly the sentence “John knows that p” are as follows: (1) Peter believes that John believes that p; (2) Peter believes that p; (3) Peter believes that the reasons for which John believes that p have a good justification. In a similar way one can ascribe to somebody a visual impression of an object x or to compare that person’s impressions with his own cognitive states. In the latter situation one uses the predicate “to see” (to perceive). The conditions that Peter uses correctly the sentence “John can see x” are the following: (I) Peter believes that John has visual impression of object x; (II) Peter believes that object x exists; (III) Peter believes that this that John has visual impression of object x is according to the laws of vision. When one uses predicates that describe cognitive states of mind of a person (possession of beliefs or sensory impressions), one speaks subjectively, whereas when one speaks objectively, he uses predicates that allow him to compare cognitive states of mind of a person with his own.