. Let φ : R → S be a ring homomorphism of R onto S. Prove...

. Let φ : R → S be a ring homomorphism of R onto S.

Prove the following:

J ⊂ S is an ideal of S if and only if φ ^−1 (J) is an ideal of R.

Expert Solution

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Colby Messinger answered 2 years ago

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