得证

得证	dé zhèng	to verify / (math.) Q.E.D.
得	dé	to obtain / to get / to gain / to catch (a disease) / proper / suitable / proud / contented / to allow / to permit / ready / finished
得	de	structural particle: used after a verb (or adjective as main verb), linking it to following phrase indicating effect, degree, possibility etc
得	děi	to have to / must / ought to / to need to
证	zhèng	to admonish / variant of 证
证	zhèng	certificate / proof / to prove / to demonstrate / to confirm / variant of 症