link to lambda library

Signed-off-by: Jim Pryor <profjim@jimpryor.net>

diff --git a/index.mdwn b/index.mdwn
index bf60116..c18172b 100644 (file)
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+++ b/index.mdwn
@@ -17,6 +17,7 @@ You should see the student sessions as opportunities to clear up lingering issue
 There is now a [[lambda evaluator]] you can use in your browser (no need to install any software).
 It can help you check whether your answer to some of the homework questions works correctly.
 
+There is now a [library](/lambda_library) of lambda-calculus arithmetical and list operations, some relatively advanced.
 
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   To play around with a **typed lambda calculus**, which we'll look at later