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| Mirrors > Home > ILE Home > Th. List > 2fveq3 | Unicode version | ||
| Description: Equality theorem for nested function values. (Contributed by AV, 14-Aug-2022.) |
| Ref | Expression |
|---|---|
| 2fveq3 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq2 5639 |
. 2
| |
| 2 | 1 | fveq2d 5643 |
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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 |
| This theorem is referenced by: difinfsnlem 7298 ctssdclemn0 7309 cc2 7486 seq3f1olemqsum 10776 seq3f1oleml 10779 seq3f1o 10780 seq3homo 10790 seqhomog 10793 seq3coll 11107 fsumf1o 11969 iserabs 12054 explecnv 12084 cvgratnnlemnexp 12103 cvgratnnlemmn 12104 fprodf1o 12167 nninfctlemfo 12629 alginv 12637 algcvg 12638 algcvga 12641 ctiunctlemu1st 13073 ctiunctlemu2nd 13074 ctiunctlemudc 13076 ctiunctlemfo 13078 prdsbasprj 13383 prdsplusgfval 13385 prdsmulrfval 13387 prdsbas3 13388 prdsinvlem 13709 isunitd 14139 wkslem1 16190 wkslem2 16191 2wlklem 16246 eupthseg 16322 eupth2lem3fi 16346 subctctexmid 16652 |
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