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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 5697 |
. 2
|
| 3 | fveq12d.2 |
. . 3
| |
| 4 | 3 | fveq2d 5699 |
. 2
|
| 5 | 2, 4 | eqtrd 2271 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-v 2823 df-un 3224 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-iota 5337 df-fv 5385 |
| This theorem is used by: nffvd 5707 fvsng 5911 fvmpopr2d 6225 tfrlem3ag 6580 tfrlem3a 6581 tfrlemi1 6603 tfr1onlem3ag 6608 omp1eomlem 7435 lswwrd 11367 swrdval 11436 cats1fvnd 11553 seq3shft 11619 climshft2 12091 fsum3 12173 ctiunctlemfo 13382 imasival 13680 gzsumfzval 13764 gzsumval2 13767 mulgfvalg 13977 mulgval 13978 mulgnndir 14007 mulgpropdg 14020 cntrval 14145 prdsinvlem 14280 unitinvinv 14515 rlmvalg 14875 rsp0 14914 znval 15055 reldvg 15871 dvfvalap 15873 lgsval 16289 lgsneg 16309 wlkres 16786 depindlem1 16913 depindlem2 16914 depindlem3 16915 |
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