Self-study
Suppose the stimulus to a parallel reasoning question was something along the lines of:
A⊃B
B⊃C
C⊃D
A,
Therefore D.
And one of the answer choices read:
W⊃X
X⊃Y
~Z⊃~Y,
W,
Therefore Z.
The sentence '~Z⊃~Y' is the contrapositive of Y⊃Z, and so just as the first argument is valid, so too is the second. But I was wondering if, in a parallel reasoning question, they will ever give an answer choice that utilizes the contrapositive.
Sorry for my poor ability to formulate a question.
are the abbreviations in the explanations of each answer really necessary? "cont." means contemporary in this case, but in the vast majority of cases it usually means continue/d. Why not just type out contemporary?