Quick question about rules

Originally Posted by LeFou

While we're on the basic rules, how do your games come down on this question?

A raise must be as much as or more than the bet that it acts against. True or False?

From Robert's Rules of Poker, Section 3, General Poker Rules, Subsection 5, Betting and Raising:

6. Any wager must be at least the size of the previous bet or raise in that round, unless a player is going all-in.