Given the premise, is the hypothesis presenting a conflicting viewpoint? Premise: One gets the impression that the editors of L used the good stuff from the W and substituted their own, much better material when they encountered some of the bad stuff. Hypothesis: The editors appeared to have subsitited nothing when working on W. 
One gets the impression that the editors of L used the good stuff from the W and substituted their own, much better material when they encountered some of the bad stuff.###The editors appeared to have subsitited nothing when working on W. 