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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 5812 |
. 2
|
| 3 | eqid 2229 |
. . . . 5
| |
| 4 | 3 | rnmpt 4972 |
. . . 4
|
| 5 | velsn 3683 |
. . . . . 6
| |
| 6 | 5 | rexbii 2537 |
. . . . 5
|
| 7 | 6 | abbii 2345 |
. . . 4
|
| 8 | 4, 7 | eqtr4i 2253 |
. . 3
|
| 9 | df-iun 3967 |
. . 3
| |
| 10 | 8, 9 | eqtr4i 2253 |
. 2
|
| 11 | 2, 10 | eqtr4i 2253 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-reu 2515 df-v 2801 df-sbc 3029 df-csb 3125 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-iun 3967 df-br 4084 df-opab 4146 df-mpt 4147 df-id 4384 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-fun 5320 df-fn 5321 df-f 5322 df-f1 5323 df-fo 5324 df-f1o 5325 |
| This theorem is referenced by: idref 5880 |
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