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Mirrors > Home > MPE Home > Th. List > elpwi | Structured version Visualization version Unicode version |
Description: Subset relation implied by membership in a power class. (Contributed by NM, 17-Feb-2007.) |
Ref | Expression |
---|---|
elpwi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpwg 4166 | . 2 | |
2 | 1 | ibi 256 | 1 |
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