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| Mirrors > Home > ILE Home > Th. List > f1eq123d | Unicode version | ||
| Description: Equality deduction for one-to-one functions. (Contributed by Mario Carneiro, 27-Jan-2017.) |
| Ref | Expression |
|---|---|
| f1eq123d.1 |
|
| f1eq123d.2 |
|
| f1eq123d.3 |
|
| Ref | Expression |
|---|---|
| f1eq123d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1eq123d.1 |
. . 3
| |
| 2 | f1eq1 5534 |
. . 3
| |
| 3 | 1, 2 | syl 14 |
. 2
|
| 4 | f1eq123d.2 |
. . 3
| |
| 5 | f1eq2 5535 |
. . 3
| |
| 6 | 4, 5 | syl 14 |
. 2
|
| 7 | f1eq123d.3 |
. . 3
| |
| 8 | f1eq3 5536 |
. . 3
| |
| 9 | 7, 8 | syl 14 |
. 2
|
| 10 | 3, 6, 9 | 3bitrd 214 |
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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-sn 3673 df-pr 3674 df-op 3676 df-br 4087 df-opab 4149 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-fun 5326 df-fn 5327 df-f 5328 df-f1 5329 |
| This theorem is referenced by: f10d 5615 isushgrm 15913 isuspgren 15996 isusgren 15997 isuspgropen 16003 isusgropen 16004 ausgrusgrben 16007 ausgrusgrien 16010 usgrstrrepeen 16070 uspgr1edc 16079 uspgr2wlkeq 16162 |
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