Wp/cmn/Zìránshù

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Zìránshù shì kěyǐ shǔ chū lái de (yī gè píngguǒ, liǎng gè píngguó, sān gè píngguǒ, ...)

Zìránshù, yībān shì zhǐ 1, 2, 3, 4, 5 ... zhīlèi de zhèngzhěngshù, yě yǒu rén rènwéi bāokuò 0.

Zìránshù yāoqiú:

  • Kěyǐ jìshù (rú "Wǒ yǒu 3 gè píngguǒ.")
  • Kěyǐ páixù (rú "Zhè shì shìjiè dì-3 dà dūshì.")

Fúhào shì \mathbb{N}.

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