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(filter even? [1 2 3 4 5]) # => @[2 4] (filter odd? [1 2 3 4 5]) # => @[1 3 5] (filter (fn [x] (not (even? x))) [1 2 3 4 5]) # => @[1 3 5] (filter (complement even?) [1 2 3 4 5]) # => @[1 3 5] (def fns [even? odd?]) (map (fn [f] (filter f [-2 -1 0 1 2])) fns) # => @[ @[-2 0 2] @[-1 1] ] (def fns (map complement fns)) (map (fn [f] (filter f [-2 -1 0 1 2])) fns) # => @[ @[-1 1] @[-2 0 2] ]