PHIL 110 Lecture 17: Lecture 17
15 Mar 2016
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When we write px, we can read it as saying one of the following equivalent things: When we write px, p is called the predicate. X (or whats in its place) is the argument of the predicate (warning:different use of argument:, as in math). There are two kinds of arguments of a predicate: Syllogistic logic is somewhat limited because its predicates have only one argument. We want predicates involving relations among many individuals. We will call a many-argument predicate a relation. Relations x is a dog x is larger than y x is just as funny as y x is between y and z x is to y what z is to w. *the choice of letter doesn"t matter, we must simply indicate what we mean. Notice, if we say x is a dog , you cannot tell me whether it"s true or not.
