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Rule of product

Index Rule of product

In combinatorics, the rule of product or multiplication principle is a basic counting principle (a.k.a. the fundamental principle of counting). [1]

8 relations: Cardinal number, Cartesian product, Combinatorial principles, Combinatorics, Disjoint sets, Ordered pair, Rule of sum, Set theory.

Cardinal number

In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality (size) of sets.

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Cartesian product

In set theory (and, usually, in other parts of mathematics), a Cartesian product is a mathematical operation that returns a set (or product set or simply product) from multiple sets.

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Combinatorial principles

In proving results in combinatorics several useful combinatorial rules or combinatorial principles are commonly recognized and used.

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Combinatorics

Combinatorics is an area of mathematics primarily concerned with counting, both as a means and an end in obtaining results, and certain properties of finite structures.

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Disjoint sets

In mathematics, two sets are said to be disjoint sets if they have no element in common.

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Ordered pair

In mathematics, an ordered pair (a, b) is a pair of objects.

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Rule of sum

In combinatorics, the rule of sum or addition principle is a basic counting principle.

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Set theory

Set theory is a branch of mathematical logic that studies sets, which informally are collections of objects.

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Redirects here:

Counting Principle, Fundamental Counting Principle, Fundamental counting principle, Fundamental theorem of counting, Multiplication principle, Rule of Product.

References

[1] https://en.wikipedia.org/wiki/Rule_of_product

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