abstract nonsense
abstract nonsense noun: details which are straightforward but so tedious that an author or lecturer would rather skip them (especially those of a category theoretical nature).
Noun
abstract nonsense (uncountable)
- Details which are straightforward but so tedious that an author or lecturer would rather skip them (especially those of a category theoretical nature).
- Details which involve diagram chasing.
- ³Lang’s Algebra [Lan02, p. 759] supports the general consensus that this was not intended as an epithet:
In the forties and fifties (mostly in the works of Cartan, Eilenberg, MacLane, and Steenrod, see [CE56]), it was realized that there was a systematic way of developing certain relations of...2016, Emily Riehl, Category Theory in Context (Aurora: Dover modern math originals), New York: Dover, →ISBN, →OCLC, archived from the original on 14 Dec 2019, page x
- ³Lang’s Algebra [Lan02, p. 759] supports the general consensus that this was not intended as an epithet:
- Category theory in general.
- Used other than figuratively or idiomatically: see abstract, nonsense.
Origin of abstract nonsense
Coined by Norman Steenrod, popularized by Serge Lang.
Questions about abstract nonsense
- What does abstract nonsense mean?
- Abstract nonsense means details which are straightforward but so tedious that an author or lecturer would rather skip them (especially those of a category theoretical nature).
- What part of speech is abstract nonsense?
- Abstract nonsense is a noun.
Words near abstract nonsense in the dictionary
Source and license
Adapted from Wiktionary: abstract nonsense (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-abstract nonsense.wav.
Cite this entry: “abstract nonsense.” Word.ws, https://word.ws/abstract_nonsense. Based on Wiktionary, CC BY-SA 4.0.
