You can search for identifiers within the package.
in-package search v0.2.0
val exists : integer -> integer -> (integer -> bool) -> bool
exists i j p is true iff the predicate there exists k within i and j, included, for which p holds.
exists i j p
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val forall : integer -> integer -> (integer -> bool) -> bool
forall i j p is true iff the predicate `p` holds forall k within i and j, included.
forall i j p