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+:PROPERTIES:
+:ID:       ed4c372b-0314-4b6e-9119-742f69b5e434
+:END:
+#+title: afp-lec-5
+#+filetags: :uni:afp:notes:
+
+* 
+the first half of the lecture we went through the practice test solutions.
+for the last question we got a hint, namely to redefine the leaf and node constructors of the Rose Trees.