A math theorem, formula, or method that originates from a particular country—for example, a deductive proof in plane geometry is unmistakably Greek, while a visual proof has a Chinese or Indian flavor.
In this age of regional or international collaboration among members of the mathematics community, when co-authoring a journal article often involves contributors of different nationalities, we can only expect native math to be the odd one in a sea of even hybrids.
by MathPlus December 3, 2018