Blackwell Reference Online

Extract

L ogic, philosophy of mind, philosophy of language In syllogistic logic, mood is every valid form within each of the four figures of categorical syllogism. For instance, the first mood of the first figure is called “Barbara,” with the form: “If all S are Q, and all P are S, then all P are Q.” In the philosophy of mind, mood is a temporary emotional state of the mind that colors a person's reactions. In the philosophy of language, different moods, such as indicative, imperative, optative, and subjunctive, indicate different forces of the same utterance. “Given any signal σ of the system, L is to assign it an interpretation 〈μ, τ〉. The component, μ, called a mood, indicates whether a is indicative or imperative. The component τ of an interpretation, called a truth condition, indicates the state of affairs in which σ is true.” D. Lewis, Convention ... log in or subscribe to read full text