→ JI1 : or let f(x) = 3 + x 06/30 20:19
推 alan23273850: ip錯誤 嘻嘻 07/01 08:52
let f(x) = x + 3. then f(3) = 3 + 3 = 6.
therefore, 3 + 3 = 6.
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