PHIL 1 Lecture Notes - Lecture 12: Logical Biconditional, If And Only If, Suspended Animation
Document Summary
Feldman is concerned with a biological concept of death. The standard analysis of death: d1: x dies at t = df x ceases to be alive at t, d1: x dies at t iff x ceases to be alive at t. = df and iff: p = df q ( p means q ) 2: both express logical equivalence, this is a guarantee that the things on both sides of the =df (or iff ) are true under the same conditions. X is my birthday = df x is the day i was born, or x is the anniversary of the day i was born. An analysis of x is a strict philosophical definition of x that attempts to specify all and only the things that are x. It does so by listing the conditions under which something counts as being x. A rectangle: x is a rectangle = df i. ii. iii.
