nullary sum
English edit
Noun edit
nullary sum (plural nullary sums)
- (arithmetic) An empty sum.
- 2012, Robert Harper, Practical Foundations for Programming Languages, →ISBN, page 86:
- These concepts are expressed by sum types, specifically the binary sum, which offers a choice of two things, and the nullary sum, which offers a choice of no things.
Translations edit
empty sum — see empty sum