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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 5672 |
. 2
| |
| 2 | 1 | fveq2d 5676 |
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 3217 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-iota 5314 df-fv 5362 |
| This theorem is referenced by: difinfsnlem 7392 ctssdclemn0 7403 cc2 7583 seq3f1olemqsum 10879 seq3f1oleml 10882 seq3f1o 10883 seq3homo 10893 seqhomog 10896 seq3coll 11218 fsumf1o 12080 iserabs 12165 explecnv 12195 cvgratnnlemnexp 12214 cvgratnnlemmn 12215 fprodf1o 12278 nninfctlemfo 12740 alginv 12748 algcvg 12749 algcvga 12752 ctiunctlemu1st 13202 ctiunctlemu2nd 13203 ctiunctlemudc 13205 ctiunctlemfo 13207 prdsbasprj 13512 prdsplusgfval 13514 prdsmulrfval 13516 prdsbas3 13517 prdsinvlem 13838 isunitd 14268 wkslem1 16332 wkslem2 16333 2wlklem 16388 eupthseg 16464 eupth2lem3fi 16488 subctctexmid 16791 |
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