Higher-order functions: Difference between revisions

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-- Applies a function against an accumulator and
-- Applies a function against an accumulator and
-- each list elment (from left-to-right) to reduce it
-- each list element (from left-to-right) to reduce it
-- to a single return value
-- to a single return value
-- Arguments: list, function, initial value of accumulator
-- Arguments: list, function, initial value of accumulator