暴风无语，请区分以下陈述：
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The annihilator of some element m in M
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An ideal that annihilates some element in M
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原话：every ideal consisting entirely of zerodivisors…
我看了八百遍：every ideal consisting entire zerodivisors…
无语😓甚至去查了consist的意思。英语不好真磨人
On the other hand, problems and complements can be used for relaxed bar-conversations after more serious pictures: what the reader will grasp there could well depend strongly on the mood of the day.
— Topics in Geometric Group Theory (Chicago Lectures in Mathematics) by Pierre de la Harpe
眼前生动浮现出一群数学人开完lecture后在放了小零食和饮料的长桌（临时征用自隔壁讨论室）旁激烈讨论的图景。
查了下，这门课的prof的advisor的advisor就是作者……期待听到一些……轶事。
Exercise 2.3: How to localize without admitting it
— Commutative algebra with a view toward algebraic geometry by David Eisenbud
深柜啊
我强烈怀疑prof选这本是因为甚至没人做它的solution集。
异圈 wants to read Metric Spaces of Non-Positive Curvature by Martin R. Bridson
Lie groups, Linear algebras, and limitations （。
异圈 commented on Algebraic topology by Fulton, William
Fulton：本书试图融合integration和homotopy 我：不了吧。
请复分析滚出我的世界，咦，怎么我的世界空了。
异圈 commented on Basic Algebraic Geometry by I.R. Shafarevich
也不知道是我的问题还是书的问题还是代数几何的问题，读这本我持续走神，差不多每两三行字就要提醒自己集中注意力……很容易就变成机械地读单词而没有去理解了。
……无语，感觉代数几何就像一门外语，光是读就已经耗尽脑力了，何况去读懂。
异圈 wants to read Topological methods in group theory by Ross Geoghegan
打算先看看homological的部分，了解一下geometric group theory是干啥的（。
异圈 commented on Algebraic topology by Fulton, William
Prof用这本搭配Hatcher那本来读的，好像是因为这本代数味道重一点。Prof做群论的人，激烈吐槽Hatcher那本完全没展示群本身的对称属性……所以用这本的11-14章作为补充。
Fulton，天地良心，习题有给答案！！！谢谢你，数学人最后的良心。
异圈 wants to read The Travelling Cat Chronicles by Hiro Arikawa
The Travelling Cat Chronicles by Hiro Arikawa
"A life-affirming anthem to kindness and self-sacrifice, The Travelling Cat Chronicles shows how the smallest things can provide the greatest …
就问你好意思自称First Course吗……你好意思吗！
这本几何的flavor比较重（的感觉），目前只读了第一节，好难，算不出。需搭配其他textbook服用。
异圈 commented on Basic Algebraic Geometry by I.R. Shafarevich
被鬼畜Prof推着两天一节的读，现在已经秃了（删除。
感觉还行！真的就还行。比另一本名为First Course实为从入门到放弃亲民多了。affine projective并列讲，讲得很详尽（的感觉）。目前还没有挤出精力来做习题，但看题量也比哈特熊亲民……