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Mirrors > Home > MPE Home > Th. List > eqneqall | Structured version Visualization version Unicode version |
Description: A contradiction concerning equality implies anything. (Contributed by Alexander van der Vekens, 25-Jan-2018.) |
Ref | Expression |
---|---|
eqneqall |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ne 2795 | . 2 | |
2 | pm2.24 121 | . 2 | |
3 | 1, 2 | syl5bi 232 | 1 |
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