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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 5578 |
. 2
|
| 3 | fveq12d.2 |
. . 3
| |
| 4 | 3 | fveq2d 5580 |
. 2
|
| 5 | 2, 4 | eqtrd 2238 |
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 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-ext 2187 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-rex 2490 df-v 2774 df-un 3170 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-br 4045 df-iota 5232 df-fv 5279 |
| This theorem is referenced by: nffvd 5588 fvsng 5780 fvmpopr2d 6082 tfrlem3ag 6395 tfrlem3a 6396 tfrlemi1 6418 tfr1onlem3ag 6423 omp1eomlem 7196 lswwrd 11040 swrdval 11101 seq3shft 11149 climshft2 11617 fsum3 11698 ctiunctlemfo 12810 imasival 13138 gsumfzval 13223 gsumval2 13229 prdsinvlem 13440 mulgfvalg 13457 mulgval 13458 mulgnndir 13487 mulgpropdg 13500 unitinvinv 13886 rlmvalg 14216 rsp0 14255 znval 14398 reldvg 15151 dvfvalap 15153 lgsval 15481 lgsneg 15501 |
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