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Problem 81 (The Image Of A Subgroup Under A Homomorphism Is A Subgroup)
Suppose that $f:G\to H$ is a homomorphism. Let $A$ be a subgroup of $G$. Show that $f(A)$ is a subgroup of $H$.
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- Problem.TheImageOfASubgroupUnderAHomomorphismIsASubgroup
- Schedule.20161114
- Schedule.20161116
- Schedule.20171117
- Schedule.AllProblems
- Solution.TheImageOfASubgroupUnderAHomomorphismIsASubgroupJoey
- Solution.TheImageOfASubgroupUnderAHomomorphismIsASubgroupMikai
- Solution.TheImageOfASubgroupUnderAHomomorphismIsASubgroupShaughn