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| Description: Two ways of saying a function is a 1-1-onto mapping of A to itself. (Contributed by Paul Chapman, 25-Feb-2008.) |
| Ref | Expression |
|---|---|
| elsymgrn.1 |
|
| elsymgrn.2 |
|
| Ref | Expression |
|---|---|
| elsymgrn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elisset 2299 |
. 2
| |
| 2 | f1of 4635 |
. . 3
| |
| 3 | elsymgrn.1 |
. . . 4
| |
| 4 | fex 4595 |
. . . 4
| |
| 5 | 3, 4 | mpan2 760 |
. . 3
|
| 6 | 2, 5 | syl 12 |
. 2
|
| 7 | f1oeq1 4630 |
. . 3
| |
| 8 | elsymgrn.2 |
. . 3
| |
| 9 | 7, 8 | elab2g 2406 |
. 2
|
| 10 | 1, 6, 9 | pm5.21nii 743 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: symgoprab 10201 symgf 10204 symggrpi 10205 symgidi 10206 cayleylem1 13641 cayleylem2 13642 symgfo 14730 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-13 1311 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-rep 3428 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 ax-un 3790 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-rex 2110 df-v 2294 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-uni 3178 df-br 3339 df-opab 3396 df-id 3586 df-xp 4000 df-rel 4001 df-cnv 4002 df-co 4003 df-dm 4004 df-rn 4005 df-res 4006 df-ima 4007 df-fun 4008 df-fn 4009 df-f 4010 df-f1 4011 df-fo 4012 df-f1o 4013 |