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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 5662 | . 2 |
3 | eqid 2165 | . . . . 5 | |
4 | 3 | rnmpt 4852 | . . . 4 |
5 | velsn 3593 | . . . . . 6 | |
6 | 5 | rexbii 2473 | . . . . 5 |
7 | 6 | abbii 2282 | . . . 4 |
8 | 4, 7 | eqtr4i 2189 | . . 3 |
9 | df-iun 3868 | . . 3 | |
10 | 8, 9 | eqtr4i 2189 | . 2 |
11 | 2, 10 | eqtr4i 2189 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1343 wcel 2136 cab 2151 wrex 2445 cvv 2726 csn 3576 cop 3579 ciun 3866 cmpt 4043 crn 4605 |
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 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-reu 2451 df-v 2728 df-sbc 2952 df-csb 3046 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-fun 5190 df-fn 5191 df-f 5192 df-f1 5193 df-fo 5194 df-f1o 5195 |
This theorem is referenced by: idref 5725 |
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