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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 5584 |
. . 3
| |
| 2 | f1f1orn 5627 |
. . 3
| |
| 3 | 1, 2 | syl 14 |
. 2
|
| 4 | df-ima 4764 |
. . 3
| |
| 5 | f1oeq3 5606 |
. . 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-br 4112 df-opab 4174 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-ima 4764 df-fun 5356 df-fn 5357 df-f 5358 df-f1 5359 df-fo 5360 df-f1o 5361 |
| This theorem is referenced by: f1imacnv 5633 f1oresrab 5844 isores3 5990 isoini2 5994 f1imaeng 7034 f1imaen2g 7035 preimaf1ofi 7223 endjusym 7389 dju1p1e2 7502 fisumss 12082 fprodssdc 12280 ssnnctlemct 13214 eqgen 13961 ushgredgedg 16238 ushgredgedgloop 16240 trlreslem 16401 domomsubct 16792 |
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