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+++ b/index.mdwn
@@ -75,23 +75,23 @@ what you think you need in order to solve the problem.
 
 > Topics:
 [[Order in programming languages and natural language|topics/week1 order]];
-[[Introduction to functional programming|topics/week1_kapulet_intro]];
+[[Introduction to functional programming|topics/week1 kapulet intro]];
 [[Homework|exercises/assignment1]];
-[[Advanced notes|topics/week1_kapulet_advanced]]
+[[Advanced notes|topics/week1 kapulet advanced]]
 
 (**Intermezzo**)
 > Help on [[learning Scheme]], [[OCaml|learning OCaml]], and [[Haskell|learning Haskell]];
 The [[differences between our made-up language and Scheme, OCaml, and Haskell|rosetta1]];
 [[What do words like "interpreter" and "compiler" mean?|ecosystem]] (in progress)
 
-(**[[Lambda Evaluator|code/lambda_evaluator]]**) Usable in your browser. It can help you check whether your answer to some of the homework questions works correctly.
+(**[[Lambda Evaluator|code/lambda evaluator]]**) Usable in your browser. It can help you check whether your answer to some of the homework questions works correctly.
 <!--
- There is also now a [library](/lambda_library) of lambda-calculus arithmetical and list operations, some relatively advanced.
+ There is also now a [library](/lambda library) of lambda-calculus arithmetical and list operations, some relatively advanced.
 -->
 
 (**Week 2**) Thursday 5 February 2015
 > Topics:
-[[Intro to the Lambda Calculus|topics/week1 lambda intro]];
+[[Intro to the Lambda Calculus|topics/week2 lambda intro]];
 [[Advanced notes|topics/week2 lambda advanced]];
 Encoding Booleans, Tuples, Lists, and Numbers (in progress);
 Homework (in progress)