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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 5465 |
. 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 df-opab 4151 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-fun 5328 df-fn 5329 df-f 5330 |
| This theorem is referenced by: feq12d 5472 fco2 5501 fssres2 5514 fresin 5515 fmpt3d 5803 fmptco 5813 fressnfv 5840 off 6247 caofinvl 6260 f2ndf 6390 eroprf 6796 pmresg 6844 pw2f1odclem 7019 fseq1p1m1 10328 mgmplusf 13448 mgmb1mgm1 13450 grpsubf 13661 lmodscaf 14323 lmbr 14936 blfps 15132 blf 15133 dvmptclx 15441 lgsfcl3 15749 |
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