Sufficient & Necessary Questions - - Question 26
rweyer April 22, 2018
because of the word without. Without introduces a necessary condition, the other part of the sentence is negated. When you have 2 negatives it creates a positive. That is why it wasn't negated
Anita April 22, 2018
"No IG without NCI" can be thought of as "there can only be IG with NCI," if that helps. NCI is necessary for IG.