Which company used a virtual version of their product in the virtual world second life to create awareness among users about their brand? cadbury iphone mcdonald’s toyota

Convert and simplify the following sentences to conjunctive normal form (cnf): (a) (p → (q → r)) → (p → (r → q)) (b) (p ∧ q) → (¬p ↔ q) (c) ((p → q) ∧ ¬q) → ¬p

Duplicating objects creates copies that a. move differently than the original object b. erase the original object c. look and act like the original object d. add events to a game

What is the first step in creating a maintenance ?