X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=hints%2Fassignment_7_hint_1.mdwn;h=6725def2c83f8904cfe3c8e2c6cd08deb1a51ec4;hp=f7d5d288fc4a0fe7f9dcb79519cad2b703a59da9;hb=00fb05d9ee37681282813893ee69ed7441fe1273;hpb=8e0247ab69bfc4372dfb77fb0c801d3dda5533cc

diff --git a/hints/assignment_7_hint_1.mdwn b/hints/assignment_7_hint_1.mdwn
index f7d5d288..6725def2 100644
--- a/hints/assignment_7_hint_1.mdwn
+++ b/hints/assignment_7_hint_1.mdwn
@@ -9,5 +9,7 @@
 
 *	Their function `g`, which assigns objects from the domain to pegs, corresponds to our store function, which assigns entities to indexes.
 
+*	At several places they talk about some things being *real extensions* of other things. This confused me at first, because they don't ever define a notion of "real extension." (They do define what they mean by "an extension.") At one point in the paper, it emerges that what they mean is what I'd call a *proper extension*: an extension which isn't identical to the original.
+
 *	[More hints](/hints/assignment_7_hint_2).