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Mirrors > Home > ILE Home > Th. List > eqtrid | Unicode version |
Description: An equality transitivity deduction. (Contributed by NM, 21-Jun-1993.) |
Ref | Expression |
---|---|
eqtrid.1 | |
eqtrid.2 |
Ref | Expression |
---|---|
eqtrid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqtrid.1 | . . 3 | |
2 | 1 | a1i 9 | . 2 |
3 | eqtrid.2 | . 2 | |
4 | 2, 3 | eqtrd 2203 | 1 |
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