plur: Plurality monad: Zero, one, or at least two.
Often when counting you don't need an exact count, but only whether there are two things. Two examples:
When searching for inhabitants of a type (implementations of a program), you want to be able to tell whether there are (a) no possible inhabitants, (b) a unique inhabitant, or (c) multiple inhabitants.
When displaying the name of a variable, if there's exactly one variable of a given name ("a") you can just use that name, but if there are multiples you might use a unique id to disambiguate them ("a1" vs "a2").
|Versions [RSS]||0.1.0.0, 0.2.0.0|
|Dependencies||base (>=4.3 && <4.14), semigroups (>=0.18) [details]|
|Copyright||(c) 2018-2019 Joel Burget|
|Uploaded||by joelb at 2019-02-12T20:21:43Z|
|Downloads||1016 total (2 in the last 30 days)|
|Rating||(no votes yet) [estimated by Bayesian average]|
|Status||Docs available [build log]
Last success reported on 2019-02-12 [all 1 reports]