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Mirrors > Home > ILE Home > Th. List > fnasrn | Unicode version |
Description: A function expressed as the range of another function. (Contributed by Mario Carneiro, 22-Jun-2013.) (Proof shortened by Mario Carneiro, 31-Aug-2015.) |
Ref | Expression |
---|---|
dfmpt.1 |
Ref | Expression |
---|---|
fnasrn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfmpt.1 | . . 3 | |
2 | 1 | dfmpt 5641 | . 2 |
3 | eqid 2157 | . . . . 5 | |
4 | 3 | rnmpt 4831 | . . . 4 |
5 | velsn 3577 | . . . . . 6 | |
6 | 5 | rexbii 2464 | . . . . 5 |
7 | 6 | abbii 2273 | . . . 4 |
8 | 4, 7 | eqtr4i 2181 | . . 3 |
9 | df-iun 3851 | . . 3 | |
10 | 8, 9 | eqtr4i 2181 | . 2 |
11 | 2, 10 | eqtr4i 2181 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1335 wcel 2128 cab 2143 wrex 2436 cvv 2712 csn 3560 cop 3563 ciun 3849 cmpt 4025 crn 4584 |
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 699 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-14 2131 ax-ext 2139 ax-sep 4082 ax-pow 4134 ax-pr 4168 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1338 df-nf 1441 df-sb 1743 df-eu 2009 df-mo 2010 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ral 2440 df-rex 2441 df-reu 2442 df-v 2714 df-sbc 2938 df-csb 3032 df-un 3106 df-in 3108 df-ss 3115 df-pw 3545 df-sn 3566 df-pr 3567 df-op 3569 df-iun 3851 df-br 3966 df-opab 4026 df-mpt 4027 df-id 4252 df-xp 4589 df-rel 4590 df-cnv 4591 df-co 4592 df-dm 4593 df-rn 4594 df-fun 5169 df-fn 5170 df-f 5171 df-f1 5172 df-fo 5173 df-f1o 5174 |
This theorem is referenced by: idref 5702 |
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