PHIL 275 Lecture Notes - Lecture 6: Definition, Count Noun, Wond
21 Sep 2013
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Descriptive phrases/ count noun phrases: have modifiers. Increasing intension: adding properties to the set, thereby decreasing the number of things that the word applies to. Words", english words", english words that begin with s"", english words that begin with s". Mammals", large mammals", large brown mammals", large brown mammals in canada". Extension is a set: {word1,} > {word1, word2} > {word1, word2, , wordn} etc. Two terms can have different intensions but the same extension. The conditions are different, but there can be some with both conditions; thus different intensions but denote the same extension. Intensional definition: defined by focusing on the intensions of the terms. Synonymous definition: defines a term by using another term with the same intension. However, these two are not synonymous definitions of one another. Being a closed figure with 4 interior angles. Ostensive definition: point to an item in its extension. Enumerative definition: listing objects in extension to the term.
