Affirmation of the consequent

Reversing the implication: p involves q, so q implies p

Affirmation of the Consequent or Affirmation of the Consequence or Inverse Error is the formal fallacy of assuming that if a premise is always followed by a consequence, then whenever we are faced with the presence of the consequence we must assume that the cause is the same. -

examples:

It is known that A causes B Before B, it is assumed that it is caused by A

If A, then B B, therefore A