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{"text":" Abstract Algebra | Ring homomorphisms\n\nring homomorphisms\\n[imath]\\begin{aligned}\\n\\varphi(a+b) &=\\varphi(a)+\\varphi(b) \\\\\\n\\varphi(a b) &=\\varphi(a) \\varphi(b)\\n\\end{aligned}[/imath]\n\n\n", "url":"https://www.youtube.com/watch?v=Q69BgnJ_sjk"}