| 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 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 7434 lswwrd 11351 swrdval 11420 cats1fvnd 11537 seq3shft 11603 climshft2 12072 fsum3 12154 ctiunctlemfo 13330 imasival 13627 gzsumfzval 13711 gzsumval2 13714 mulgfvalg 13924 mulgval 13925 mulgnndir 13954 mulgpropdg 13967 prdsinvlem 14196 unitinvinv 14431 rlmvalg 14791 rsp0 14830 znval 14971 reldvg 15780 dvfvalap 15782 lgsval 16123 lgsneg 16143 wlkres 16620 depindlem1 16747 depindlem2 16748 depindlem3 16749 |
| Copyright terms: Public domain | W3C validator |