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Mirrors > Home > MPE Home > Th. List > mptexgf | 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.) (Revised by Thierry Arnoux, 17-May-2020.) |
Ref | Expression |
---|---|
mptexgf.a |
Ref | Expression |
---|---|
mptexgf |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funmpt 5926 | . 2 | |
2 | eqid 2622 | . . . . 5 | |
3 | 2 | dmmpt 5630 | . . . 4 |
4 | a1tru 1500 | . . . . . . 7 | |
5 | 4 | rgenw 2924 | . . . . . 6 |
6 | ss2rab 3678 | . . . . . 6 | |
7 | 5, 6 | mpbir 221 | . . . . 5 |
8 | mptexgf.a | . . . . . 6 | |
9 | 8 | rabtru 3361 | . . . . 5 |
10 | 7, 9 | sseqtri 3637 | . . . 4 |
11 | 3, 10 | eqsstri 3635 | . . 3 |
12 | ssexg 4804 | . . 3 | |
13 | 11, 12 | mpan 706 | . 2 |
14 | funex 6482 | . 2 | |
15 | 1, 13, 14 | sylancr 695 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wtru 1484 wcel 1990 wnfc 2751 wral 2912 crab 2916 cvv 3200 wss 3574 cmpt 4729 cdm 5114 wfun 5882 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 |
This theorem is referenced by: numclwlk1lem2 27230 esumrnmpt2 30130 mptexf 39444 |
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