4 lines
578 B
HTML
4 lines
578 B
HTML
<h2 id="isomorph">Isomorph</h2>
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<p><img class="right" alt="isomorph cats" src="categories/img/isomorph-cats.jpg" /> <em class="yellow">isomorphism</em>: \(f:A→B\) which can be "undone" <em>i.e.</em><br />\(∃g:B→A\), \(g∘f=id_A\) & \(f∘g=id_B\)<br />in this case, \(A\) & \(B\) are <em class="yellow">isomorphic</em>.</p>
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<p><span class="yellow">A≌B</span> means A and B are essentially the same.<br />In Category Theory, <span class="yellow">=</span> is in fact mostly <span class="yellow">≌</span>.<br />For example in commutative diagrams.</p>
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