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| Mirrors > Home > ILE Home > Th. List > f1ores | Unicode version | ||
| Description: The restriction of a one-to-one function maps one-to-one onto the image. (Contributed by NM, 25-Mar-1998.) |
| Ref | Expression |
|---|---|
| f1ores |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1ssres 5512 |
. . 3
| |
| 2 | f1f1orn 5555 |
. . 3
| |
| 3 | 1, 2 | syl 14 |
. 2
|
| 4 | df-ima 4706 |
. . 3
| |
| 5 | f1oeq3 5534 |
. . 3
| |
| 6 | 4, 5 | ax-mp 5 |
. 2
|
| 7 | 3, 6 | sylibr 134 |
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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-14 2181 ax-ext 2189 ax-sep 4178 ax-pow 4234 ax-pr 4269 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ral 2491 df-rex 2492 df-v 2778 df-un 3178 df-in 3180 df-ss 3187 df-pw 3628 df-sn 3649 df-pr 3650 df-op 3652 df-br 4060 df-opab 4122 df-xp 4699 df-rel 4700 df-cnv 4701 df-co 4702 df-dm 4703 df-rn 4704 df-res 4705 df-ima 4706 df-fun 5292 df-fn 5293 df-f 5294 df-f1 5295 df-fo 5296 df-f1o 5297 |
| This theorem is referenced by: f1imacnv 5561 f1oresrab 5768 isores3 5907 isoini2 5911 f1imaeng 6907 f1imaen2g 6908 preimaf1ofi 7079 endjusym 7224 dju1p1e2 7336 fisumss 11818 fprodssdc 12016 ssnnctlemct 12932 eqgen 13678 domomsubct 16140 |
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