Mathematical equation to be proved in the number or other symbol
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No. 4
Metaphors do not know what
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No. 5
Can book publishing, is unknown
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Mathematical terms
Mathematical terms. Algebraic or numerical equation that need to go through to determine the number of operations. Yu also means not to understand things. Wei Wei, "East" part IV of Chapter XVII: "When the distant goal is still unknown, we own the ship has been crushed in a rock." Such as: Can this success or looks.