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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 5675 |
. 2
| |
| 2 | 1 | fveq2d 5679 |
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 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-rex 2528 df-v 2817 df-un 3218 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-iota 5317 df-fv 5365 |
| This theorem is referenced by: difinfsnlem 7403 ctssdclemn0 7414 cc2 7597 seq3f1olemqsum 10899 seq3f1oleml 10902 seq3f1o 10903 seq3homo 10913 seqhomog 10916 seq3coll 11239 fsumf1o 12101 iserabs 12186 explecnv 12216 cvgratnnlemnexp 12235 cvgratnnlemmn 12236 fprodf1o 12299 nninfctlemfo 12761 alginv 12769 algcvg 12770 algcvga 12773 ctiunctlemu1st 13269 ctiunctlemu2nd 13270 ctiunctlemudc 13272 ctiunctlemfo 13274 prdsbasprj 14124 prdsplusgfval 14126 prdsmulrfval 14128 prdsbas3 14129 prdsinvlem 14138 isunitd 14351 wkslem1 16441 wkslem2 16442 2wlklem 16497 eupthseg 16573 eupth2lem3fi 16597 subctctexmid 16900 |
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