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| Mirrors > Home > MPE Home > Th. List > difeq1d | Structured version Visualization version Unicode version | ||
| Description: Deduction adding difference to the right in a class equality. (Contributed by NM, 15-Nov-2002.) |
| Ref | Expression |
|---|---|
| difeq1d.1 |
|
| Ref | Expression |
|---|---|
| difeq1d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | difeq1d.1 |
. 2
| |
| 2 | difeq1 3721 |
. 2
| |
| 3 | 1, 2 | syl 17 |
1
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