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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 5456 |
. 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 4084 df-opab 4146 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-fun 5320 df-fn 5321 df-f 5322 |
| This theorem is referenced by: feq12d 5463 fco2 5492 fssres2 5505 fresin 5506 fmpt3d 5793 fmptco 5803 fressnfv 5830 off 6237 caofinvl 6250 f2ndf 6378 eroprf 6783 pmresg 6831 pw2f1odclem 7003 fseq1p1m1 10302 mgmplusf 13414 mgmb1mgm1 13416 grpsubf 13627 lmodscaf 14289 lmbr 14902 blfps 15098 blf 15099 dvmptclx 15407 lgsfcl3 15715 |
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