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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | )abbrev category CACHSET CachableSet
++ Author: Manuel Bronstein
++ Date Created: 31 Oct 1988
++ Date Last Updated: 14 May 1991
++ Description:
++ A cachable set is a set whose elements keep an integer as part
++ of their structure.
CachableSet() : Category == SIG where
SIG ==> OrderedSet with
position : % -> NonNegativeInteger
++ position(x) returns the integer n associated to x.
setPosition : (%, NonNegativeInteger) -> Void
++ setPosition(x, n) associates the integer n to x.
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