From b6acaf238ccd6746a9232ee9ab98d6c55baea065 Mon Sep 17 00:00:00 2001
From: Hui Lan <lanhui@zjnu.edu.cn>
Date: Thu, 5 Mar 2020 22:35:17 +0800
Subject: spm-slides.tex: permissive.

---
 spm-slides.tex | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spm-slides.tex b/spm-slides.tex
index d730849..12bc686 100644
--- a/spm-slides.tex
+++ b/spm-slides.tex
@@ -1345,6 +1345,8 @@ of each software source file.
 
 {\em Copyleft}.  A copyleft license says that the derivative works must grant freedoms described in the parent license.
 
+{\em Permissive}.  Does not require copyleft.  Example: MIT Licenses, Apache Software License version 2.
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \foilhead{Good precedents}
 
-- 
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