{ min max supremum infimum } related-words
+HELP: shortest
+{ $values { "seq" sequence } { "elt" object } }
+{ $description "Outputs the shortest element of " { $snippet "seq" } "." } ;
+
+HELP: longest
+{ $values { "seq" sequence } { "elt" object } }
+{ $description "Outputs the longest element of " { $snippet "seq" } "." } ;
+
+{ shortest longest } related-words
+
HELP: produce
{ $values { "pred" { $quotation ( ..a -- ..b ? ) } } { "quot" { $quotation ( ..b -- ..a obj ) } } { "seq" sequence } }
{ $description "Calls " { $snippet "pred" } " repeatedly. If the predicate yields " { $link f } ", stops, otherwise, calls " { $snippet "quot" } " to yield a value. Values are accumulated and returned in a sequence at the end." }