In a mathematical manner; according to the laws or principles of mathematical science; with mathematical certainty; demonstrably: as, a proposition that is mathematically true.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. with respect to mathematics
Word Usage
"In the Independents 'Trophy, Tom Coronel won the first race, which awarded him the title mathematically, his second title in this class with SEAT."