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| Mirrors > Home > ILE Home > Th. List > 3eqtrd | Unicode version | ||
| Description: A deduction from three chained equalities. (Contributed by NM, 29-Oct-1995.) |
| Ref | Expression |
|---|---|
| 3eqtrd.1 |
|
| 3eqtrd.2 |
|
| 3eqtrd.3 |
|
| Ref | Expression |
|---|---|
| 3eqtrd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3eqtrd.1 |
. 2
| |
| 2 | 3eqtrd.2 |
. . 3
| |
| 3 | 3eqtrd.3 |
. . 3
| |
| 4 | 2, 3 | eqtrd 2229 |
. 2
|
| 5 | 1, 4 | eqtrd 2229 |
1
|
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