add stubs for week 12

[lambda.git] / index.mdwn

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@@ -185,6 +185,13 @@ We've posted a [[State Monad Tutorial]].
 
 > Topics: We will be discussing the reading posted above. Here are [[notes and links to code|/topics/week10_gsv]].
 
+(**Week 11**) Thursday April 16
+
+> We postponed class this week to enable people to attend the Partee talk.
+
+(**Week 12**) Thursday April 23
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+> Topics: Mutation and hyper-synonymy; [[Abortable list traversals|/topics/week12_abortable_traversals]]; List and tree zippers; Homework
 
 
 ## Course Overview ##