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<h2 class="hd hd-2 unit-title">Introduction</h2>
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<p>Read <a href="/assets/courseware/v1/794ccc602cd7a73621f3becc5495e097/asset-v1:OCW+6.042J+2T2019+type@asset+block/MIT6_042JS15_Session6.pdf" target="[object Object]">Chapter 4.1–4.2 (PDF)</a> of <em>Mathematics for Computer Science</em> for 1.6 Sets.</p>
<p>View the <a href="/assets/courseware/v1/f79ec0319cdfa4393b9b6ead98cf6827/asset-v1:OCW+6.042J+2T2019+type@asset+block/MIT6_042JS15_cp6.pdf" target="[object Object]">Section 1.6 In-Class Questions (PDF)</a></p>
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<h2 class="hd hd-2 unit-title">Lecture Video | Sets Definitions</h2>
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<h2 class="hd hd-2 unit-title">Exercise | Difference</h2>
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<mi>B</mi>
<mo stretchy="false">)</mo>
<mo fence="false" stretchy="false">}</mo>
</math>
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<div class="field">
<input type="radio" name="input_b6ec763533344c34b8e3003a9214437f_2_1" id="input_b6ec763533344c34b8e3003a9214437f_2_1_choice_3" class="field-input input-radio" value="choice_3"/><label id="b6ec763533344c34b8e3003a9214437f_2_1-choice_3-label" for="input_b6ec763533344c34b8e3003a9214437f_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_b6ec763533344c34b8e3003a9214437f_2_1"> <math xmlns="http://www.w3.org/1998/Math/MathML">
<mo fence="false" stretchy="false">{</mo>
<mi>x</mi>
<mo>&#8739;<!-- &#8739; --></mo>
<mo stretchy="false">(</mo>
<mi>x</mi>
<mo>&#8712;<!-- &#8712; --></mo>
<mi>A</mi>
<mo stretchy="false">)</mo>
<mtext>&#160;AND&#160;</mtext>
<mo stretchy="false">(</mo>
<mi>x</mi>
<mo>&#8712;<!-- &#8712; --></mo>
<mi>B</mi>
<mo stretchy="false">)</mo>
<mo fence="false" stretchy="false">}</mo>
</math>
</label>
</div>
<div class="field">
<input type="radio" name="input_b6ec763533344c34b8e3003a9214437f_2_1" id="input_b6ec763533344c34b8e3003a9214437f_2_1_choice_4" class="field-input input-radio" value="choice_4"/><label id="b6ec763533344c34b8e3003a9214437f_2_1-choice_4-label" for="input_b6ec763533344c34b8e3003a9214437f_2_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_b6ec763533344c34b8e3003a9214437f_2_1"> <math xmlns="http://www.w3.org/1998/Math/MathML">
<mo fence="false" stretchy="false">{</mo>
<mi>x</mi>
<mo>&#8739;<!-- &#8739; --></mo>
<mo stretchy="false">(</mo>
<mi>x</mi>
<mo>&#8712;<!-- &#8712; --></mo>
<mi>A</mi>
<mo stretchy="false">)</mo>
<mtext>&#160;OR&#160;</mtext>
<mo stretchy="false">(</mo>
<mi>x</mi>
<mo>&#8713;<!-- &#8713; --></mo>
<mi>B</mi>
<mo stretchy="false">)</mo>
<mo fence="false" stretchy="false">}</mo>
</math>
</label>
</div>
<div class="field">
<input type="radio" name="input_b6ec763533344c34b8e3003a9214437f_2_1" id="input_b6ec763533344c34b8e3003a9214437f_2_1_choice_5" class="field-input input-radio" value="choice_5"/><label id="b6ec763533344c34b8e3003a9214437f_2_1-choice_5-label" for="input_b6ec763533344c34b8e3003a9214437f_2_1_choice_5" class="response-label field-label label-inline" aria-describedby="status_b6ec763533344c34b8e3003a9214437f_2_1"> <math xmlns="http://www.w3.org/1998/Math/MathML">
<mo fence="false" stretchy="false">{</mo>
<mi>x</mi>
<mo>&#8739;<!-- &#8739; --></mo>
<mo stretchy="false">(</mo>
<mi>x</mi>
<mo>&#8713;<!-- &#8713; --></mo>
<mi>A</mi>
<mo stretchy="false">)</mo>
<mtext>&#160;OR&#160;</mtext>
<mo stretchy="false">(</mo>
<mi>x</mi>
<mo>&#8712;<!-- &#8712; --></mo>
<mi>B</mi>
<mo stretchy="false">)</mo>
<mo fence="false" stretchy="false">}</mo>
</math>
</label>
</div>
<span id="answer_b6ec763533344c34b8e3003a9214437f_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_b6ec763533344c34b8e3003a9214437f_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div></div>
<div class="solution-span">
<span id="solution_b6ec763533344c34b8e3003a9214437f_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Difference" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_b6ec763533344c34b8e3003a9214437f" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_b6ec763533344c34b8e3003a9214437f">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
<span class="problem-action-button-wrapper">
<button type="button" class="reset problem-action-btn btn-default btn-small" data-value="Reset"><span class="icon fa fa-refresh" aria-hidden="true"></span><span aria-hidden="true">Reset</span><span class="sr">Reset your answer</span></button>
</span>
<span class="problem-action-button-wrapper">
<button type="button" class="show problem-action-btn btn-default btn-small" aria-describedby="b6ec763533344c34b8e3003a9214437f-problem-title"><span class="icon fa fa-info-circle" aria-hidden="true"></span><span class="show-label">Show Answer</span></button>
</span>
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="b6ec763533344c34b8e3003a9214437f-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="b6ec763533344c34b8e3003a9214437f-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="b6ec763533344c34b8e3003a9214437f-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
Introduction
Read Chapter 4.1–4.2 (PDF) of Mathematics for Computer Science for 1.6 Sets.
View the Section 1.6 In-Class Questions (PDF)