---
layout: "default"
---

<p>
{% assign categories = page.categories | sort %}
Categories:
{% for category in categories %}
{% assign url = category | slugify %}
<a href="/know/category/{{ url }}">{{ category }}</a>{% if forloop.last == false %},{% endif %}{% endfor %}.
</p>

<h1>{{ page.title }}</h1>

{% capture markdown_after_katex %}
{% katexmm %}
{{ page.content }}
{% endkatexmm %}
{% endcapture %}

{{ markdown_after_katex | markdownify }}