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| Mirrors > Home > ILE Home > Th. List > feq1d | Unicode version | ||
| Description: Equality deduction for functions. (Contributed by NM, 19-Feb-2008.) |
| Ref | Expression |
|---|---|
| feq1d.1 |
|
| Ref | Expression |
|---|---|
| feq1d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | feq1d.1 |
. 2
| |
| 2 | feq1 5455 |
. 2
| |
| 3 | 1, 2 | syl 14 |
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 2801 df-un 3201 df-in 3203 df-ss 3210 df-sn 3672 df-pr 3673 df-op 3675 df-br 4083 df-opab 4145 df-rel 4725 df-cnv 4726 df-co 4727 df-dm 4728 df-rn 4729 df-fun 5319 df-fn 5320 df-f 5321 |
| This theorem is referenced by: feq12d 5462 fco2 5489 fssres2 5502 fresin 5503 fmpt3d 5790 fmptco 5800 fressnfv 5825 off 6229 caofinvl 6242 f2ndf 6370 eroprf 6773 pmresg 6821 pw2f1odclem 6991 fseq1p1m1 10286 mgmplusf 13394 mgmb1mgm1 13396 grpsubf 13607 lmodscaf 14268 lmbr 14881 blfps 15077 blf 15078 dvmptclx 15386 lgsfcl3 15694 |
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