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-rw-r--r--cring.scm6
1 files changed, 3 insertions, 3 deletions
diff --git a/cring.scm b/cring.scm
index 320b1d2..dfbb027 100644
--- a/cring.scm
+++ b/cring.scm
@@ -1,9 +1,9 @@
;;;"cring.scm" Extend Scheme numerics to any commutative ring.
;Copyright (C) 1997, 1998 Aubrey Jaffer
;
-;Permission to copy this software, to redistribute it, and to use it
-;for any purpose is granted, subject to the following restrictions and
-;understandings.
+;Permission to copy this software, to modify it, to redistribute it,
+;to distribute modified versions, and to use it for any purpose is
+;granted, subject to the following restrictions and understandings.
;
;1. Any copy made of this software must include this copyright notice
;in full.