mention vs notation

mention and notation both are nouns.

Word	Noun	Adjective	Verb	Adverb
mention	Yes	No	Yes	No
notation	Yes	No	No	No

As nouns, notation is a hypernym of mention; that is, notation is a word with a broader meaning than mention:

mention: a short note recognizing a source of information or of a quoted passage
notation: a comment or instruction (usually added)

Other hypernyms of mention include annotation, note.

mention (noun)	notation (noun)
an official recognition of merit	the activity of representing something by a special system of marks or characters
a remark that calls attention to something or someone	a technical system of symbols used to represent special things
a short note recognizing a source of information or of a quoted passage	a comment or instruction (usually added)