| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 5650 |
. 2
|
| 3 | fveq12d.2 |
. . 3
| |
| 4 | 3 | fveq2d 5652 |
. 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-rex 2517 df-v 2805 df-un 3205 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-iota 5293 df-fv 5341 |
| This theorem is referenced by: nffvd 5660 fvsng 5858 fvmpopr2d 6168 tfrlem3ag 6518 tfrlem3a 6519 tfrlemi1 6541 tfr1onlem3ag 6546 omp1eomlem 7336 lswwrd 11209 swrdval 11278 cats1fvnd 11395 seq3shft 11461 climshft2 11929 fsum3 12011 ctiunctlemfo 13123 imasival 13452 gsumfzval 13537 gsumval2 13543 prdsinvlem 13754 mulgfvalg 13771 mulgval 13772 mulgnndir 13801 mulgpropdg 13814 unitinvinv 14202 rlmvalg 14533 rsp0 14572 znval 14715 reldvg 15473 dvfvalap 15475 lgsval 15806 lgsneg 15826 wlkres 16303 depindlem1 16430 depindlem2 16431 depindlem3 16432 |
| Copyright terms: Public domain | W3C validator |