## Affirming the Consequent

Stating that something implies something else because the latter implies the former.

Mistaking a necessary condition for a sufficient condition.

**General form:**

*"A implies B and B is true, therefore A is true."*

*"A implies B, therefore B implies A."*

**Typical example:**

*"All apples are fruits; this is a fruit, therefore this is an apple."*

A necessary condition is not automatically also a sufficient one. When something implies something else, this means that the former being true makes the latter also true, not the other way around.