Algebraic

The intersection of two algebraic sets is an algebraic set corresponding to the union of the polynomials. For example, and intersect at , i.e., where and .

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mathworld.wolfram.com

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Complex

Complex training is a workout comprising of a resistance exercise followed by a matched plyometric exercise e.g.: squats followed by squat jumps bench press followed by plyometric press up

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Imaginary

An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by its property i 2 = −1. The square of an imaginary number bi is −b 2. For example, 5i is an imaginary number, and its square is −25. Zero is considered to be both real and imaginary.

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en.wikipedia.org

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Integer

Other integer data types are implemented with a fixed size, usually a number of bits which is a power of 2 (4, 8, 16, etc.) or a memorable number of decimal digits (e.g., 9 or 10). Cardinality The cardinality of the set of integers is equal to ℵ 0 .

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en.wikipedia.org

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Natural

For example, it is intuitive from either the list {1, 2, 3, 4, ...} or the list {0, 1, 2, 3, ...} that 356,804,251 is a natural number, but 356,804,251.5, 2/3, and -23 are not. Both of the sets of natural numbers defined above are denumerable. They are also exactly the same size.

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whatis.techtarget.com

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Rational

The term rational in reference to the set Q refers to the fact that a rational number represents a ratio of two integers. In mathematics, "rational" is often used as a noun abbreviating "rational number". The adjective rational sometimes means that the coefficients are rational numbers.

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en.wikipedia.org

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Real

There exist sets of real numbers that are not Lebesgue measurable, e.g. Vitali sets. The supremum axiom of the reals refers to subsets of the reals and is therefore a second-order logical statement. It is not possible to characterize the reals with first-order logic alone: the Löwenheim–Skolem theorem implies that there exists a countable dense subset of the real numbers satisfying exactly ...

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