If gof is onto then g is onto | If gof is surjective then g is surjective || NumberX

This is the part 01 out of four lectures on this topic. The description of remaining three parts has been given below.

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You can find following content in the lecture.
If gof is one one then f is one one.
If gof is one to one.
If gof is one to one then so is f.
If gof is one to one then g is one to one.
If gof is one to one must f be one to one.
#gof, ifgofis,