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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 5637 |
. 2
|
| 3 | fveq12d.2 |
. . 3
| |
| 4 | 3 | fveq2d 5639 |
. 2
|
| 5 | 2, 4 | eqtrd 2262 |
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-rex 2514 df-v 2802 df-un 3202 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-iota 5284 df-fv 5332 |
| This theorem is referenced by: nffvd 5647 fvsng 5845 fvmpopr2d 6153 tfrlem3ag 6470 tfrlem3a 6471 tfrlemi1 6493 tfr1onlem3ag 6498 omp1eomlem 7284 lswwrd 11150 swrdval 11219 cats1fvnd 11336 seq3shft 11389 climshft2 11857 fsum3 11938 ctiunctlemfo 13050 imasival 13379 gsumfzval 13464 gsumval2 13470 prdsinvlem 13681 mulgfvalg 13698 mulgval 13699 mulgnndir 13728 mulgpropdg 13741 unitinvinv 14128 rlmvalg 14458 rsp0 14497 znval 14640 reldvg 15393 dvfvalap 15395 lgsval 15723 lgsneg 15743 wlkres 16174 |
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