Pre-image - Axioms of Choice

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Pre-image

Set

Pre-image of the function $f$ w.r.t the codomain subset $Z$ .

context	$Z$
context	$f\in X^Y$

postulate

$x\in f^{-1}(Y)$

postulate

$f(x)\in Z$

Ramifications

Reference

Wikipedia: Image

Parents

Context

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