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Mirrors > Home > ILE Home > Th. List > eqtr4d | Unicode version |
Description: An equality transitivity equality deduction. (Contributed by NM, 18-Jul-1995.) |
Ref | Expression |
---|---|
eqtr4d.1 |
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eqtr4d.2 |
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Ref | Expression |
---|---|
eqtr4d |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqtr4d.1 |
. 2
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2 | eqtr4d.2 |
. . 3
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3 | 2 | eqcomd 2183 |
. 2
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4 | 1, 3 | eqtrd 2210 |
1
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