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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 5690 |
. 2
| |
| 2 | 1 | fveq2d 5694 |
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 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 theorem 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 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-iota 5332 df-fv 5380 |
| This theorem is referenced by: difinfsnlem 7429 ctssdclemn0 7440 cc2 7623 seq3f1olemqsum 10928 seq3f1oleml 10931 seq3f1o 10932 seq3homo 10942 seqhomog 10945 hashf1 11265 seq3coll 11272 fsumf1o 12135 iserabs 12220 explecnv 12250 cvgratnnlemnexp 12269 cvgratnnlemmn 12270 fprodf1o 12333 nninfctlemfo 12795 alginv 12803 algcvg 12804 algcvga 12807 ctiunctlemu1st 13303 ctiunctlemu2nd 13304 ctiunctlemudc 13306 ctiunctlemfo 13308 prdsbasprj 14159 prdsplusgfval 14161 prdsmulrfval 14163 prdsbas3 14164 prdsinvlem 14173 isunitd 14386 logfac 15918 wkslem1 16475 wkslem2 16476 2wlklem 16531 eupthseg 16607 eupth2lem3fi 16631 subctctexmid 16944 |
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