: <span class="kt">Prop</span>}, (a <span class="bp">‚Üî</span> b) <span class="bp">‚Üí</span> b <span class="bp">‚Üí</span> a</blockquote></div></div></small></span></pre></div>
<div class="section" id="documenting-proofs">
<h1>Documenting proofs</h1>
<p>Alectryon also captures goals and hypotheses as proofs progress:</p>
<pre class="alectryon-io highlight"><!-- Generator: Alectryon --><span class="alectryon-sentence"><span class="alectryon-input"><span class="kd">example</span> (p q r : <span 