venn-about.php

<?php $page_name = 'about' ?>
<?php include 'includes/head.php';?>
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            <h2>What is this thing?</h2>
            <p>Venn diagrams or set diagrams are diagrams that show all possible logical relations between a finite collection of sets (aggregation of things). Venn diagrams were conceived around 1880 by John Venn. They are used to teach elementary set theory, as well as illustrate simple set relationships in probability, logic, statistics, linguistics and computer science (see logical connectives).</p>
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<?php include 'includes/foot.php';?>