Puzzle Explanations
Premise D may be alternatively stated as 'either' Lazy or Slow or Idle must have beer'. Considering Premise A in the light of this, it is easy to infer that either Lazy or Slow must have beer. Consequently, from Premise B it is apparent that Idle too must have beer. However, s Slow cannot have beer when Idle does (Premise C), it stands to reason that both Lazy and Idle have beer where as Slow never does.
|
|
