Yellow Paper Section 4:1 (6) and (7) explanation help needed:

Question

Can anyone please explain this (6) and (7) and what does "element-wise transformation means"?

Answer 1

I think the answer might be:

for (6): The top-level function is the TRIE which accepts a element-wise eval function which we define as level L L accepts two functions KEC, RLP

for (7): so Li -> ( KEC(ki), RLP(vi) ) and the universal representation of this function which applies to all elements would be:

       L[I]* = (KEC(k), RLP(v))

Please do let me know if I am on the right track here.