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Prove the second set mapping if f is a one-to-one onto.

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Topology
Sets and Functions (XXXI)
Functions

Consider an arbitrary mapping f : X -->Y.

Prove the main property of the second set mapping:

f^(-1) (i Bi) = i f^(-1) (Bi)

See the attached file.

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This solution shows how to prove the main property of the second set mapping in an attached Word document.

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