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Mirrors > Home > MPE Home > Th. List > rpre | Structured version Visualization version Unicode version |
Description: A positive real is a real. (Contributed by NM, 27-Oct-2007.) |
Ref | Expression |
---|---|
rpre |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rp 11331 |
. . 3
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2 | ssrab2 3525 |
. . 3
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3 | 1, 2 | eqsstri 3473 |
. 2
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4 | 3 | sseli 3439 |
1
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