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Mirrors > Home > MPE Home > Th. List > eqeq1i | Structured version Visualization version Unicode version |
Description: Inference from equality to equivalence of equalities. (Contributed by NM, 15-Jul-1993.) |
Ref | Expression |
---|---|
eqeq1i.1 |
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Ref | Expression |
---|---|
eqeq1i |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqeq1i.1 |
. 2
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2 | eqeq1 2455 |
. 2
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3 | 1, 2 | ax-mp 5 |
1
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