This is my code.
lst = {1, 3, 5}; ReplaceAll[lst, lst[[2]] -> {7, 9, 11}]; lst It is supposed to get output {1, {7, 9, 11}, 5}
However, it can only get {1, 3, 5} instead.
lst = {1, 3, 5}; lst[[2]] = {7, 9, 11}; lst But this one above works. Can anyone explain this?
