Intuitively, a function is a process that associates each element of a set X, to a single element of a set Y. Formally, a function f from a set X to a set Y is defined by a set G of ordered pairs (x, y) such that x ∈ X, y ∈ Y, and every element of X is the first component of exactly one ordered pair in G.
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Answer:
Intuitively, a function is a process that associates each element of a set X, to a single element of a set Y. Formally, a function f from a set X to a set Y is defined by a set G of ordered pairs (x, y) such that x ∈ X, y ∈ Y, and every element of X is the first component of exactly one ordered pair in G.