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1 point by goodbyejim 6116 days ago | link | parent

Arc's form of let does not accept an extra pair of parentheses:

arc> (let ((x 2)) (+ x 3)) Error: "Can't understand fn arg list 2"

But: arc> (let x 1 (+ x (* x 2))) results in 3

So:

arc> (let x 2 (+ x 3)) results in 5