Question

Which of the following can be inferred from the statement that "Either John is stupid or John is lazy" ? 

1. John is lazy/therefore, John is not stupid 

2. John is not lazy/therefore, John is stupid 

3 John is not stupid/therefore, John is lazy 

4. John is stupid/therefore, John is not lazy Codes: 

(a) 1 and 2 (b) 2 and 3 (c) 3 and 4 (d) 1 and 4

Answer 1

(b) According to the given statement “Either John is stupid or John is lazy”, it can be inferred that John can not be stupid and lazy simultaneously. In the light of this inference one can conclude that only statements (2) and (3) can be right while statements (1) and (4) depicts the opposite of inferred.