喵喵小喵喵
https://www.zhihu.com/question/516096647/answer/2346834397 https://github.com/coq/coq/wiki/extensional_equality 被群友大教教
没懂为什么 prop ext 会破坏 canonicity
所谓的 Intensional inductive families 指的是什么?
所谓的 Intensional inductive families 指的是什么?
Forwarded from Hacker News
We migrated our PostgreSQL database with 11 seconds downtime (🔥 Score: 151+ in 3 hours)
Link: https://readhacker.news/s/5YmDp
Comments: https://readhacker.news/c/5YmDp
Link: https://readhacker.news/s/5YmDp
Comments: https://readhacker.news/c/5YmDp
gds.blog.gov.uk
How we migrated our PostgreSQL database with 11 seconds downtime
GOV.UK Notify recently migrated our production database. Find out how we did it with the least possible disruption to our users.