Let m, n e N. If n >= m, then there is a unique b e N such that n = m + b.

How do I prove that b is unique.

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- Feb 16th 2009, 08:50 PMjzellt[SOLVED] Proof: uniqueness of a natural number
Let m, n e N. If n >= m, then there is a unique b e N such that n = m + b.

How do I prove that b is unique. - Feb 16th 2009, 08:56 PMChris L T521
- Feb 16th 2009, 08:57 PMJhevon