六年来，无穷小放飞互联网，推出袖珍电子书系列，特别是，党的十九大之后，向全国高校轮番投放鲁宾逊微积分教材（OER），伴随“知识共享”许可协议的宣传与普及，目前，国内数学“知识共享”生态圈已经初步形成，正在不断发展，持久性的存在。
一般而言，数学作品有两大类：一类是“版权私有”，一类是“知识共享”。前者久已存在，后者新生事物（存在不足20年）。
数学作品形成有生命力的“生态圈”的必要条件是“知识共享”的一项重要属性：
ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
简而言之，数学作品一旦“知识共享”，其衍生作品就永久“知识共享”。这是“知识共享”生态圈的应有之义。
“知识共享”促进开放教育资源（OER）越滚越大 形成生态圈，是必由之路。
袁萌 陈启清 11月21日
附件：鲁宾逊微积分教材的“知识共享”许可协议全文，请仔细阅读、理解。
Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0)
This is a human-readable summary of (and not a substitute for) the license. Disclaimer.
You are free to:
一、Share — copy and redistribute the material in any medium or format
二、Adapt — remix, transform, and build upon the material
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
NonCommercial — You may not use the material for commercial purposes.
ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
A new version of this license is available. You should use it for new works, and you may want to relicense existing works under it. No works are automatically put under the new license, however.
Learn more about CC licensing, or use the license for your own material.
This page is available in the following languages:
Bahasa Indonesia Bahasa Malaysia Castellano (Espa?a) Català Dansk Deutsch English Espa?ol Esperanto Euskara fran?ais Galego hrvatski Italiano Latviski Lietuvi? Magyar Nederlands norsk polski Português Português (BR) roman? Sloven??ina suomeksi svenska Türk?e íslenska ?e?tina Ελληνικ? Беларуская укра?нська ??????? ????? ????? 中文 日本語 華語 (台灣) ???
When you share, everyone win
Contact Privacy Policies Terms
Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution 4.0 International license. Icons by The Noun Project.