While I can agree that you dont need to know Erlang to know Elixir, there is a caveat to that. Knowing Erlang can make you a better Elixir developer.
Many devs who hit Elixir coming from Ruby or Python, for example, often miss some of the important nuances of the BEAM runtime and of OTP. If you have the time, I recommend reading Erlang in Action; it’s my single-most favourite book for teaching proper use of OTP and how BEAM works. I promise you you will see Elixir in a whole new light. Another great book is The Little Elixir and OTP Guidebook, but that’s no as deep.
