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Mirrors > Home > ILE Home > Th. List > eqbrtrrd | Unicode version |
Description: Substitution of equal classes into a binary relation. (Contributed by NM, 24-Oct-1999.) |
Ref | Expression |
---|---|
eqbrtrrd.1 | |
eqbrtrrd.2 |
Ref | Expression |
---|---|
eqbrtrrd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqbrtrrd.1 | . . 3 | |
2 | 1 | eqcomd 2171 | . 2 |
3 | eqbrtrrd.2 | . 2 | |
4 | 2, 3 | eqbrtrd 4003 | 1 |
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