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Mirrors > Home > MPE Home > Th. List > elnnuz | Structured version Visualization version Unicode version |
Description: A positive integer expressed as a member of an upper set of integers. (Contributed by NM, 6-Jun-2006.) |
Ref | Expression |
---|---|
elnnuz |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnuz 11723 |
. 2
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2 | 1 | eleq2i 2693 |
1
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