 Mental phenomena, also called mental acts, fall into three separate classes (second thesis): presentations (Vorstellungen), judgments, and phenomena of love and hate. In the mental act of presentation, an object is presented; in a judgment, judged; in love and hate, loved or  hated.[3]  Next (third thesis), mental phenomena are either presentations or are based on presentations. We need to present an object in order to judge it or appreciate it (though we do not need to judge or appreciate an object that we might just present). Importantly, however (fourth thesis), a judgment is not a combination of presentations, but a mental act sui generis that accepts or rejects the object given by the presentation at its basis (see  Brentano's Theory of Judgment).  In keeping with this idea, all judgments (fifth thesis) can be aptly expressed in the existential form ‘A is’ (positive judgment) or ‘A is not’ (negative judgment) (alternatively, ‘A exists’ or ‘A does not exist’). In both cases, the judgment has a so-called ‘immanent’ object, given by the presentation, which is simply A.