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Mirrors > Home > MPE Home > Th. List > 3eqtr4g | Structured version Unicode version |
Description: A chained equality inference, useful for converting to definitions. (Contributed by NM, 21-Jun-1993.) |
Ref | Expression |
---|---|
3eqtr4g.1 |
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3eqtr4g.2 |
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3eqtr4g.3 |
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Ref | Expression |
---|---|
3eqtr4g |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3eqtr4g.2 |
. . 3
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2 | 3eqtr4g.1 |
. . 3
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3 | 1, 2 | syl5eq 2507 |
. 2
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4 | 3eqtr4g.3 |
. 2
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5 | 3, 4 | syl6eqr 2513 |
1
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