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Mirrors > Home > ILE Home > Th. List > eqeltrrd | Unicode version |
Description: Deduction that substitutes equal classes into membership. (Contributed by NM, 14-Dec-2004.) |
Ref | Expression |
---|---|
eqeltrrd.1 |
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eqeltrrd.2 |
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Ref | Expression |
---|---|
eqeltrrd |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqeltrrd.1 |
. . 3
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2 | 1 | eqcomd 2183 |
. 2
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3 | eqeltrrd.2 |
. 2
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4 | 2, 3 | eqeltrd 2254 |
1
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