University of Kansas, Spring 2004
Philosophy 160: Introduction to Ethics


For each of the following sets of statements, ascertain whether X and Y are compatible.

  X Y compatible?
1 2 + 2 = 4 The sky is blue.  
2 2 + 2 = 5 Topeka is the capital of Kansas.  
3 Bob Dole is the president. Dick Cheney is the president.  
4 Bob Dole has been president. Dick Cheney has been president.  
5 Today is Monday. Today is not Monday. (said on the same day)  
6 Today is Monday. Today is not Monday. (said on a different day)  
7 Lying is wrong. Lying is not wrong.  
8 I believe lying is wrong. I believe lying is not wrong. (said by a different person)  
9 I disapprove of lying. I do not disapprove of lying. (said by a different person)