wedge sum vs mathematical space

wedge sum and mathematical space both are nouns.

Word	Noun	Adjective	Verb	Adverb
wedge sum	Yes	No	No	No
mathematical space	Yes	No	No	No

As nouns, mathematical space is a hypernym of wedge sum; that is, mathematical space is a word with a broader meaning than wedge sum:

wedge sum: (mathematics) a one-point union of a family of topological spaces.
mathematical space: (mathematics) any set of points that satisfy a set of postulates of some kind

Other hypernyms of wedge sum include topological space.

wedge sum (noun)	mathematical space (noun)
(mathematics) a one-point union of a family of topological spaces.	(mathematics) any set of points that satisfy a set of postulates of some kind