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Thread: rings

  1. April 8th 2010, 08:54 AM #1
    bookie88
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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. April 8th 2010, 03:13 PM #2
    Drexel28
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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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