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f (next && next.nodeName.toLowerCase() === 'br') { next.parentNode.removeChild(next); } } }); }); MathJax.Hub.Queue(function() { var all = MathJax.Hub.getAllJax(), i; for (i = 0; i < all.length; i += 1) { element = document.getElementById(all[i].inputID + '-Frame').parentNode; if (element.nodeName.toLowerCase() == 'li') { element = element.parentNode; } element.classList.add('has-jax'); } });