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Mirrors > Home > ILE Home > Th. List > reldm | Unicode version |
Description: An expression for the domain of a relation. (Contributed by NM, 22-Sep-2013.) |
Ref | Expression |
---|---|
reldm |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | releldm2 6076 | . . 3 | |
2 | vex 2684 | . . . . . . 7 | |
3 | 1stexg 6058 | . . . . . . 7 | |
4 | 2, 3 | ax-mp 5 | . . . . . 6 |
5 | eqid 2137 | . . . . . 6 | |
6 | 4, 5 | fnmpti 5246 | . . . . 5 |
7 | fvelrnb 5462 | . . . . 5 | |
8 | 6, 7 | ax-mp 5 | . . . 4 |
9 | fveq2 5414 | . . . . . . . 8 | |
10 | vex 2684 | . . . . . . . . 9 | |
11 | 1stexg 6058 | . . . . . . . . 9 | |
12 | 10, 11 | ax-mp 5 | . . . . . . . 8 |
13 | 9, 5, 12 | fvmpt 5491 | . . . . . . 7 |
14 | 13 | eqeq1d 2146 | . . . . . 6 |
15 | 14 | rexbiia 2448 | . . . . 5 |
16 | 15 | a1i 9 | . . . 4 |
17 | 8, 16 | syl5rbb 192 | . . 3 |
18 | 1, 17 | bitrd 187 | . 2 |
19 | 18 | eqrdv 2135 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wceq 1331 wcel 1480 wrex 2415 cvv 2681 cmpt 3984 cdm 4534 crn 4535 wrel 4539 wfn 5113 cfv 5118 c1st 6029 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pow 4093 ax-pr 4126 ax-un 4350 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-v 2683 df-sbc 2905 df-un 3070 df-in 3072 df-ss 3079 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-br 3925 df-opab 3985 df-mpt 3986 df-id 4210 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-iota 5083 df-fun 5120 df-fn 5121 df-f 5122 df-fo 5124 df-fv 5126 df-1st 6031 df-2nd 6032 |
This theorem is referenced by: (None) |
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