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In: Advanced Math

Consider the group homomorphism φ : S3 × S5→ S5 and φ((σ, τ )) = τ...

Consider the group homomorphism φ : S3 × S5→ S5 and φ((σ, τ )) = τ .

(a) Determine the kernel of φ. Prove your answer. Call K the kernel.

(b) What are all the left cosets of K in S3× S5 using set builder notation.

(c) What are all the right cosets of K in S3 × S5 using set builder notation.

(d) What is the preimage of an element σ ∈ S5 under φ?

(e) Compare your answers in parts (b)-(d). What do you notice?

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