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| Mirrors > Home > ILE Home > Th. List > fveq12d | Unicode version | ||
| Description: Equality deduction for function value. (Contributed by FL, 22-Dec-2008.) |
| Ref | Expression |
|---|---|
| fveq12d.1 |
|
| fveq12d.2 |
|
| Ref | Expression |
|---|---|
| fveq12d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq12d.1 |
. . 3
| |
| 2 | 1 | fveq1d 5641 |
. 2
|
| 3 | fveq12d.2 |
. . 3
| |
| 4 | 3 | fveq2d 5643 |
. 2
|
| 5 | 2, 4 | eqtrd 2264 |
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-rex 2516 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 |
| This theorem is referenced by: nffvd 5651 fvsng 5849 fvmpopr2d 6157 tfrlem3ag 6474 tfrlem3a 6475 tfrlemi1 6497 tfr1onlem3ag 6502 omp1eomlem 7292 lswwrd 11159 swrdval 11228 cats1fvnd 11345 seq3shft 11398 climshft2 11866 fsum3 11947 ctiunctlemfo 13059 imasival 13388 gsumfzval 13473 gsumval2 13479 prdsinvlem 13690 mulgfvalg 13707 mulgval 13708 mulgnndir 13737 mulgpropdg 13750 unitinvinv 14137 rlmvalg 14467 rsp0 14506 znval 14649 reldvg 15402 dvfvalap 15404 lgsval 15732 lgsneg 15752 wlkres 16229 |
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