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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 5493 |
. 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 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 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-sn 3697 df-pr 3698 df-op 3700 df-br 4112 df-opab 4174 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-fun 5356 df-fn 5357 df-f 5358 |
| This theorem is referenced by: feq12d 5500 fco2 5531 fssres2 5544 fresin 5545 fmpt3d 5835 fmptco 5845 fressnfv 5873 off 6281 caofinvl 6294 f2ndf 6424 eroprf 6864 pmresg 6912 pw2f1odclem 7089 fseq1p1m1 10432 mgmplusf 13596 mgmb1mgm1 13598 grpsubf 13809 lmodscaf 14475 lmbr 15095 blfps 15291 blf 15292 dvmptclx 15600 lgsfcl3 15911 |
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