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| Mirrors > Home > MPE Home > Th. List > ovex | Structured version Visualization version Unicode version | ||
| Description: The result of an operation is a set. (Contributed by NM, 13-Mar-1995.) |
| Ref | Expression |
|---|---|
| ovex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ov 6653 |
. 2
| |
| 2 | fvex 6201 |
. 2
| |
| 3 | 1, 2 | eqeltri 2697 |
1
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