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首师大 2018 范畴论讨论班笔记 | Notes for CATegory theory seminar held in Capital Normal University (首都师范大学), Beijing during 2018 autumn. Pictures, LaTeX docs and PDF docs inside.

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category-theory-seminar-notes-cnu-2018's Introduction

category-theory-seminar-notes-cnu-2018

范畴论讨论班笔记 | Notes for CATegory theory seminar held in Capital Normal University (首都师范大学), Beijing during 2018 autumn.

范畴论与程序语义入门讨论小组 2018-2019 秋季学期

时间:每周六上午 9:00 - 11:30(第一次时间为 9 月 15 日)9.29 国庆调休停一次!!10.6 未决定

地点:首都师范大学北一区文科楼 806

[宣传、暂定大纲]

课下讨论微信群:群二维码太 volatile 了,请加微信 snowonion

Pictures, LaTeX docs and PDF docs inside. Written in 中文 | Chinese and English (I'm sure I won't make “full mutual translation*”. So some parts will be in Chinese and others in English).

​ * What's the idiomatic English expression?

仓库结构

您可以通过这小节的链接访问各个星期的笔记,从而较少地手动探索本 Git 仓库的文件夹结构——如果我更新这个目录及时的话。我尽量在更新仓库内容时同步更新目录。

第一周我的笔记图(含有错误!主讲人为此写的纠错),我的感想和少量笔记文字

可能有的图过大(大约超过 1 MiB),在手机版网页浏览器上 GitHub 不给显示预览。请“请求桌面站点 / 访问电脑版页面”、用电脑看、或 git clone 再看。

Prelude [zh]

讨论班。

神圣的词汇。

我也想参加一次呀。

但是修饰它的前缀总是“物理”和“数学”。

三五个聪明又有功底的头脑聚在一起,为了求真或荣誉,唰唰唰进步飞快。

我们学电脑的三五个同学聚在一起干正事,那叫做大作业、考前抢救、集中开发。

​ (可能姚的少年除外,假如祂们能被归为“学电脑的”。where 少年 := 少男和少女)

请原谅我这么屌丝。“Smart is new sexy”观念深入骨髓,然而我又是一条懒狗;一切关于性的焦虑,在我这儿都能移植到搞学问上……

搞学问吧!

在参加这个讨论班之前,我对范畴论的了解是低于等于知乎平均水平的。看了看维基百科上的几个定义;下载了约 50 MB 的范畴论 PDF;一道习题都没做;尝试弄懂为什么单子是自函子范畴上的幺半群但是没搞定。

但是我就那么跳进水里学游泳啦。“我知道群环域度量赋范内积空间!我会 Haskell!我不怕!”我这样鼓励着自己,跟 ZFM 一起走进了首都师范大学北一区文科楼 806。

Prelude [en]

TODO

Cultural gap: Do everyone discuss category theory on Quora? I'd better translate 知乎 to MathOverflow or something.

TODO

Ask hosts whether to place their full names on it.

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