Ring Theory | Second Isomorphism Theorem | Complete Proof
Автор: Do Mathematics
Загружено: 2023-07-02
Просмотров: 1141
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In this video, we discuss the following content:
Proof of Second Isomorphism Theorem.
Statement: Let R be a ring, and let A be a subring of R and I be an ideal of R. Then:
(1): A+I is a subring of R.
(2): A∩I is an ideal of S.
(3): (A+I)/I ≅ A/(A∩I)
For the basics on homomorphism, see the lectures:
• Ring Theory | Homomorphisms | Kernel | Hom...
• Ring Theory | First Isomorphism Theorem | ...
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