taylorhunt6759 taylorhunt6759
  • 25-04-2024
  • Mathematics
contestada

Suppose f, g and h are all mappings of a set A into itself. (a)
Prove that if g is onto and f ◦ g = h ◦ g, then f = h. (b) Prove
that if f is one-to-one and f ◦ g = f ◦ h, then g = h.

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