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intersection/3

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Vítor Santos Costa II
2010-04-21 00:15:11 +01:00
parent 2566ebcee5
commit b0b42d0e31
2 changed files with 19 additions and 2 deletions
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docs/yap.tex
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@@ -4149,7 +4149,7 @@ The following predicates provide counting:
@cnindex plus/3
True if @var{Int3} = @var{Int1} + @var{Int2}. At least two of the
three arguments must be instantiated to integers.
@end table
@node I/O, Database, Arithmetic, Top
@section I/O Predicates
@@ -9006,6 +9006,13 @@ If @var{Low} and @var{High} are integers with @var{Low} =<
@var{High}, unify @var{List} to a list @code{[Low, Low+1, ...High]}. See
also @code{between/3}.
@item intersection(+@var{Set1}, +@var{Set2}, +@var{Set3})
@findex intersection/3
@syindex intersection/3
@cnindex intersection/3
Succeeds if @var{Set3} unifies with the intersection of @var{Set1} and
@var{Set2}. @var{Set1} and @var{Set2} are lists without duplicates. They
need not be ordered.
@end table
@node LineUtilities, MapList, Lists, Library