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Mirrors > Home > ILE Home > Th. List > f1f1orn | Unicode version |
Description: A one-to-one function maps one-to-one onto its range. (Contributed by NM, 4-Sep-2004.) |
Ref | Expression |
---|---|
f1f1orn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1fn 5330 | . 2 | |
2 | df-f1 5128 | . . 3 | |
3 | 2 | simprbi 273 | . 2 |
4 | f1orn 5377 | . 2 | |
5 | 1, 3, 4 | sylanbrc 413 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 ccnv 4538 crn 4540 wfun 5117 wfn 5118 wf 5119 wf1 5120 wf1o 5122 |
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-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-11 1484 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-in 3077 df-ss 3084 df-f 5127 df-f1 5128 df-fo 5129 df-f1o 5130 |
This theorem is referenced by: f1ores 5382 f1cnv 5391 f1cocnv1 5397 f1ocnvfvrneq 5683 ssenen 6745 f1dmvrnfibi 6832 |
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