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Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of “de Finibus Bonorum et Malorum” (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, “Lorem ipsum dolor sit amet..”, comes from a line in section 1.10.32. $ c = \pm\sqrt{a^2 + b^2} $ and \( f(x)=\int_{-\infty}^{\infty} \hat{f}(\xi) e^{2 \pi i \xi x} d \xi \)

Note
This article uses the Dewey Decimal system of notation.
Logical consistency
A given set of propositions is consistent if and only if it is possible for each member of the set to be true at the same time. It is inconsistent just if this is not the case.
Saul Kripke
There is no mathematical substitute for philosophy.
Example
  1. Anyone who takes astrology seriously is crazy.
  2. Jane is my sister and no sister of mine has a crazy person for a husband.
  3. Richard is Jane’s husband and he checks his horoscope every morning.
  4. Anyone who checks their horoscope takes astrology seriously.

$$ c = \pm\sqrt{a^2 + b^2} $$

\[ f(x)=\int_{-\infty}^{\infty} \hat{f}(\xi) e^{2 \pi i \xi x} d \xi \]

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const letters = ['A', 'B', 'C'];

function quadratic(array) {
  for (let i = 0; i < array.length; i++) {
    for (let j = 0; j < array.length j++) {
      console.log(array[i]);
    }
  }
}