MalakhelLanguage
UniqueList
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Sigma KEE - UniqueList
UniqueList
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A List in which no item appears more than once,i.e. a List for which there are no distinct numbers ?NUMBER1 and ?NUMBER2 such that (ListOrderFn ?LIST ?NUMBER1) and (ListOrderFn ?LIST ?NUMBER2) return the same value.
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Relationships
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List |
Every List is a particular ordered n-tuple of items. Generally speaking, Lists are created by means of the ListFn Function, which takes any number of items as arguments and returns a List with the items in the same order. Anything, including other Lists, may be an item in a List. Note too that Lists are extensional - two lists that have the same items in the same order are identical. Note too that a List may contain no items. In that case, the List is the NullList.
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