a fa-check"></i><b>2.1.5</b> Case Sensitivity</a></li>
<li class="chapter" data-level="2.1.6" data-path="r-intro.html"><a href="r-intro.html#help"><i class="fa fa-check"></i><b>2.1.6</b> Help</a></li>
<li class="chapter" data-level="2.1.7" data-path="r-intro.html"><a href="r-intro.html#objects"><i class="fa fa-check"></i><b>2.1.7</b> Objects</a></li>
<li class="chapter" data-level="2.1.8" data-path="r-intro.html"><a href="r-intro.html#comments"><i class="fa fa-check"></i><b>2.1.8</b> Comments</a></li>
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