title: Objective C: NSMutableArray does not retain objects
body: <p>I'm so stumped by this, I set the object in the array, but when I check it after they're all set, it comes up as (null)</p>
  
  <pre><code>for (int i = 0; i &lt; [lines count]; i+=2) {
      [terms addObject:[lines objectAtIndex:i]];
      NSLog(@"%@",[terms objectAtIndex:i]);
  }
  </code></pre>
  
  <p>Am I doing something wrong? <code>terms</code> is declared in the header, set as a property, and synthesized as an NSMutableArray</p>