Redux absolutely _is_ an implementation of the Flux Architecture. I've described it as "Flux taken to its logical conclusion". If you read my post "The Tao of Redux, Part 1 - Implementation and Intent" [0], I quote several comments and pieces of early documentation that back up Redux's Flux heritage. Redux inherited the idea of plain action objects with a `type` field, action creators, and the concept of "dispatching"
[0] http://blog.isquaredsoftware.com/2017/05/idiomatic-redux-tao...