Also note the equivalent unicode methods: ∈(item,collection) -> Bool ∋(collection,item) -> Bool ∉(item,collection) -> Bool ∌(collection,item) -> Bool
All(?) of which can also be infixed. On Thursday, November 12, 2015 at 4:42:21 PM UTC-8, Freddy Chua wrote: > > that works, thank you. > > Freddy Chua > > > On Thu, Nov 12, 2015 at 3:06 PM, Seth <catc...@bromberger.com > <javascript:>> wrote: > >> in(el, S) or el in S. >> >> >> On Thursday, November 12, 2015 at 2:36:28 PM UTC-8, Freddy Chua wrote: >>> >>> haskey does not work for Set ? It only works for Dict. Should it be that >>> way? How do I test whether an element is in a Set? >>> >> >
