a) Every non-empty subset of has a greatest lower bound
b) It is uncountable
c) Every non-empty finite subset of has a least upper bound
d) Every non-empty subset of has a least upper bound
Consider the set N* of finite sequences of natural numbers with a denoting that sequence a is a prefix of sequence b. Th
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answerhappygod
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Consider the set N* of finite sequences of natural numbers with a denoting that sequence a is a prefix of sequence b. Th
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