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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 5568 |
. . 3
| |
| 3 | 1, 2 | syl 14 |
. 2
|
| 4 | f1eq123d.2 |
. . 3
| |
| 5 | f1eq2 5569 |
. . 3
| |
| 6 | 4, 5 | syl 14 |
. 2
|
| 7 | f1eq123d.3 |
. . 3
| |
| 8 | f1eq3 5570 |
. . 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 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-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-sn 3695 df-pr 3696 df-op 3698 df-br 4110 df-opab 4172 df-rel 4756 df-cnv 4757 df-co 4758 df-dm 4759 df-rn 4760 df-fun 5354 df-fn 5355 df-f 5356 df-f1 5357 |
| This theorem is referenced by: f10d 5650 isushgrm 16067 isuspgren 16152 isusgren 16153 isuspgropen 16159 isusgropen 16160 ausgrusgrben 16163 ausgrusgrien 16166 usgrstrrepeen 16226 uspgr1edc 16235 uspgr2wlkeq 16360 |
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