corollary

A gift beyond what is actually due; an addition or superfluity.

An a fortiori occurrence, as a result of another effort without significant additional effort.

Finally getting that cracked window fixed was a nice corollary of redoing the whole storefront.

A proposition which follows easily from the statement or proof of another proposition.

We have proven that this set is finite and well ordered; as a corollary, we now know that there is an order-preserving map from it to the natural numbers.

Occurring as a natural consequence or result; attendant; consequential.

However, given current sensibilities about individual privacy and data protection, the recording of oral data is becoming increasingly onerous for researchers who are obliged to navigate an often time-consuming and complex series of administrative requirements and corollary review processes in order to be granted ethics clearance.

Forming a proposition that follows from one already proved.