Complete the form of the above argument:

Question

"If it’s right for me to lie and not right for you, then there is a relevant difference between our cases. There is no relevant difference between our cases. It’s not right for you to lie. Therefore, it’s not right for me to lie. (M, Y, R)

1. ____________

2. ~R 

3. ~Y

∴ ~M

Complete the form of the above argument:

a.~((M v Y) • R)

b. ((M • ~Y) ⊃ R)

c.((M v Y) • R)

d. ((M v Y) ⊃ R)

Answer 1

b. The larger logical structure of the first sentence is an "if...,then..." statement, so we're looking at b. or d.

Let's analyze b. more closely. Answer b. is . Looking at and separately, we get:

"It's right for me to lie."

"It's not right for you to lie."

"There is a relevant difference between our cases."

Plugging these into b. we get:

"If it's right for me to lie and it's not right for you to lie, then there is a relevant difference between our cases." which is, in so many words, sentence 1, as desired.