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Mirrors > Home > MPE Home > Th. List > mptexg | Structured version Visualization version Unicode version |
Description: If the domain of a function given by maps-to notation is a set, the function is a set. (Contributed by FL, 6-Jun-2011.) (Revised by Mario Carneiro, 31-Aug-2015.) |
Ref | Expression |
---|---|
mptexg |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funmpt 5926 | . 2 | |
2 | eqid 2622 | . . . 4 | |
3 | 2 | dmmptss 5631 | . . 3 |
4 | ssexg 4804 | . . 3 | |
5 | 3, 4 | mpan 706 | . 2 |
6 | funex 6482 | . 2 | |
7 | 1, 5, 6 | sylancr 695 | 1 |
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