:1 and :3 are keywords, not numbers. map literals are specified in terms of key-value pairs; for example, in {a b c d}, a and c are keys, b and d are values. In your person struct, :1 is only used as a key once, which is why that works. This might help make things clearer:
(struct person {:1 "english person" [{:2 "Andrew D" [{:3 "father Andrew D" :3 "mother Lisa D"}] :2 "Justin M" [{:3 "Elisa M"}]}] :1 "chinese person" [{:2 "Chi chi"}] }) In the first pair, :1 is the key, "english person" is the value. In the second pair, the nested vector/map thing is the key, :1 is the value. In the last pair, "chinese person" is the key, the vector containing a map is the value. With all due respect, the questions you've posted to the list contain some misunderstandings about certain Clojure fundamentals. May I suggest taking the time to work through a tutorial or book? It will make life easier going forward. There are many good choices to pick from, but this is one of my personal favorites: http://java.ociweb.com/mark/clojure/article.html -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en