mathematics vs single-valued function

mathematics and single-valued function both are nouns.

Word	Noun	Adjective	Verb	Adverb
mathematics	Yes	No	No	No
single-valued function	Yes	No	No	No

mathematics (noun)	single-valued function (noun)
a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement	(mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)