Question

In: Advanced Math

3. Let F : X → Y and G: Y → Z be functions. i. If...

3. Let F : X → Y and G: Y → Z be functions.

i. If G ◦ F is injective, then F is injective.

ii. If G ◦ F is surjective, then G is surjective.

iii. If G ◦ F is constant, then F is constant or G is constant.

iv. If F is constant or G is constant, then G ◦ F is constant.

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