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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fveq2 5429 |
. 2
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2 | 1 | fveq2d 5433 |
1
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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 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-rex 2423 df-v 2691 df-un 3080 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-br 3938 df-iota 5096 df-fv 5139 |
This theorem is referenced by: difinfsnlem 6992 ctssdclemn0 7003 cc2 7099 seq3f1olemqsum 10304 seq3f1oleml 10307 seq3f1o 10308 seq3homo 10314 seq3coll 10617 fsumf1o 11191 iserabs 11276 explecnv 11306 cvgratnnlemnexp 11325 cvgratnnlemmn 11326 alginv 11764 algcvg 11765 algcvga 11768 ctiunctlemu1st 11983 ctiunctlemu2nd 11984 ctiunctlemudc 11986 ctiunctlemfo 11988 subctctexmid 13369 |
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