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Mathematics, 18.07.2019 18:30 AdamWitt

Let a, b r be non-empty sets. suppose that a b. suppose that b has a least upper bound. prove that a has a least upper bound, and lub a lessthanorequalto lub b.

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Let a, b r be non-empty sets. suppose that a b. suppose that b has a least upper bound. prove that a...
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