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Mirrors > Home > MPE Home > Th. List > 3eqtr2d | Structured version Visualization version Unicode version |
Description: A deduction from three chained equalities. (Contributed by NM, 4-Aug-2006.) |
Ref | Expression |
---|---|
3eqtr2d.1 |
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3eqtr2d.2 |
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3eqtr2d.3 |
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Ref | Expression |
---|---|
3eqtr2d |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3eqtr2d.1 |
. . 3
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2 | 3eqtr2d.2 |
. . 3
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3 | 1, 2 | eqtr4d 2498 |
. 2
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4 | 3eqtr2d.3 |
. 2
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5 | 3, 4 | eqtrd 2495 |
1
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