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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 5462 |
. 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 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 |
| This theorem is referenced by: feq12d 5469 fco2 5498 fssres2 5511 fresin 5512 fmpt3d 5799 fmptco 5809 fressnfv 5836 off 6243 caofinvl 6256 f2ndf 6386 eroprf 6792 pmresg 6840 pw2f1odclem 7015 fseq1p1m1 10319 mgmplusf 13439 mgmb1mgm1 13441 grpsubf 13652 lmodscaf 14314 lmbr 14927 blfps 15123 blf 15124 dvmptclx 15432 lgsfcl3 15740 |
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