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This works:
(+ 1 2 3) 6 This doesn’t work:
(+ '(1 2 3)) This works if ‘cl-*‘ is loaded:
(reduce '+ '(1 2 3)) 6 If reduce were always available I could write:
(defun sum (L) (reduce '+ L)) (sum '(1 2 3)) 6 What is the best practice for defining functions such as sum?
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