husserl pointed out that the failure of anti psychologists to defeat psychologism was a result of being unable to distinguish between the foundational theoretical side of logic and the applied practical side.
husserl after his platonic turn pointed out that the failure of anti psychologists to defeat psychologism is a result of being unable to distinguish between the theoretical side of logic lrb which tells us what is descriptive rrb and the normative side lrb which tells us how we ought to think prescriptive rrb.