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Mirrors > Home > ILE Home > Th. List > eleqtrrdi | Unicode version |
Description: A membership and equality inference. (Contributed by NM, 24-Apr-2005.) |
Ref | Expression |
---|---|
eleqtrrdi.1 | |
eleqtrrdi.2 |
Ref | Expression |
---|---|
eleqtrrdi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleqtrrdi.1 | . 2 | |
2 | eleqtrrdi.2 | . . 3 | |
3 | 2 | eqcomi 2169 | . 2 |
4 | 1, 3 | eleqtrdi 2259 | 1 |
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