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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 5601 |
. 2
|
| 3 | fveq12d.2 |
. . 3
| |
| 4 | 3 | fveq2d 5603 |
. 2
|
| 5 | 2, 4 | eqtrd 2240 |
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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-rex 2492 df-v 2778 df-un 3178 df-sn 3649 df-pr 3650 df-op 3652 df-uni 3865 df-br 4060 df-iota 5251 df-fv 5298 |
| This theorem is referenced by: nffvd 5611 fvsng 5803 fvmpopr2d 6105 tfrlem3ag 6418 tfrlem3a 6419 tfrlemi1 6441 tfr1onlem3ag 6446 omp1eomlem 7222 lswwrd 11077 swrdval 11139 seq3shft 11264 climshft2 11732 fsum3 11813 ctiunctlemfo 12925 imasival 13253 gsumfzval 13338 gsumval2 13344 prdsinvlem 13555 mulgfvalg 13572 mulgval 13573 mulgnndir 13602 mulgpropdg 13615 unitinvinv 14001 rlmvalg 14331 rsp0 14370 znval 14513 reldvg 15266 dvfvalap 15268 lgsval 15596 lgsneg 15616 |
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