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Math Help - rings

  1. #1
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    rings

    If R₁ and R₂ are subrings of the ring R, then prove that R₁∩R₂ is a subring of R.
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  2. #2
    MHF Contributor Drexel28's Avatar
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    Quote Originally Posted by bookie88 View Post
    If R₁ and R₂ are subrings of the ring R, then prove that R₁∩R₂ is a subring of R.
    What have you tried?
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