| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > f1oeng | Unicode version | ||
| Description: The domain and range of a one-to-one, onto function are equinumerous. (Contributed by NM, 19-Jun-1998.) |
| Ref | Expression |
|---|---|
| f1oeng |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1ofo 5590 |
. . . 4
| |
| 2 | focdmex 6276 |
. . . 4
| |
| 3 | 1, 2 | syl5 32 |
. . 3
|
| 4 | 3 | imp 124 |
. 2
|
| 5 | f1oen2g 6927 |
. . 3
| |
| 6 | 5 | 3com23 1235 |
. 2
|
| 7 | 4, 6 | mpd3an3 1374 |
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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-coll 4204 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-en 6909 |
| This theorem is referenced by: f1oen 6931 f1imaeng 6965 xpen 7030 fidifsnen 7056 dif1en 7067 f1ofi 7141 f1dmvrnfibi 7142 omp1eom 7293 endjusym 7294 eninl 7295 eninr 7296 summodclem2 11942 zsumdc 11944 prodmodclem2 12137 zproddc 12139 eulerthlemh 12802 4sqlem11 12973 ssnnctlemct 13066 conjsubgen 13864 znfi 14668 znhash 14669 usgrsizedgen 16063 eupthfi 16301 2omapen 16595 pw1mapen 16597 pwf1oexmid 16600 |
| Copyright terms: Public domain | W3C validator |