12 lines
459 B
HTML
12 lines
459 B
HTML
<h2>Category</h2>
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<p>A way of representing <strong><em>things</em></strong> and <strong><em>ways to go between things</em></strong>.</p>
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<p> A Category \(\mathcal{C}\) is defined by:</p>
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<ul>
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<li> <em>Objects <span class="yellow">\(\ob{C}\)</span></em>,</li>
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<li> <em>Morphisms <span class="yellow">\(\hom{C}\)</span></em>,</li>
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<li> a <em>Composition law <span class="yellow">(∘)</span></em></li>
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<li> obeying some <em>Properties</em>.</li>
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</ul>
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