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Posted by on Tuesday, February 22, 2011 at 10:47pm.

If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C.

True or False
if false must provide a counterexample

  • MATH - , Wednesday, February 23, 2011 at 12:11am

    A: {apple, orange, pineapple}
    B: {apple, orange, pineapple}
    C: {apple, orange, pineapple}

    A⊆B ∧ B⊆C -> A⊂C

    Is this true or false?

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