If you did not believe that the league is over in terms of who will win it then today should have cleared all you doubt. Liverpool are leading Arsenal by 14 points with a game in hand for Arsenal, although I don't think that even matters anymore.
Today Arsenal really showed by they can not be title winners, they created little chances and were mostly dancing around the field, I think gunners were the lucky ones today because Manchester United had more chances to bury the game.
Liverpool have already gotten what they want for the season, this is how to win the Premier league title by being consistent in getting more points unlike arsenal that will be at the top and they can be consistent with their games but along the line they fall out.
With the number of point Liverpool has nothing can make them no to win the league titles this season. Arsenal had good chances of winning the league title about three seasons but they couldn't, for three season they made the same mistake and in this season their performance is even worse than previous seasons.