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| Mirrors > Home > ILE Home > Th. List > iseqvalcbv | Unicode version | ||
| Description: Changing the bound
variables in an expression which appears in some
        | 
| Ref | Expression | 
|---|---|
| iseqvalcbv | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | oveq1 5929 | 
. . . . . . . . . 10
 | |
| 2 | 1 | fveq2d 5562 | 
. . . . . . . . 9
 | 
| 3 | 2 | oveq2d 5938 | 
. . . . . . . 8
 | 
| 4 | oveq1 5929 | 
. . . . . . . 8
 | |
| 5 | 3, 4 | cbvmpov 6002 | 
. . . . . . 7
 | 
| 6 | 5 | oveqi 5935 | 
. . . . . 6
 | 
| 7 | 6 | opeq2i 3812 | 
. . . . 5
 | 
| 8 | 7 | a1i 9 | 
. . . 4
 | 
| 9 | 8 | mpoeq3ia 5987 | 
. . 3
 | 
| 10 | oveq1 5929 | 
. . . . 5
 | |
| 11 | oveq1 5929 | 
. . . . 5
 | |
| 12 | 10, 11 | opeq12d 3816 | 
. . . 4
 | 
| 13 | oveq2 5930 | 
. . . . 5
 | |
| 14 | 13 | opeq2d 3815 | 
. . . 4
 | 
| 15 | 12, 14 | cbvmpov 6002 | 
. . 3
 | 
| 16 | 9, 15 | eqtr3i 2219 | 
. 2
 | 
| 17 | freceq1 6450 | 
. 2
 | |
| 18 | 16, 17 | ax-mp 5 | 
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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-v 2765 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-br 4034 df-opab 4095 df-mpt 4096 df-res 4675 df-iota 5219 df-fv 5266 df-ov 5925 df-oprab 5926 df-mpo 5927 df-recs 6363 df-frec 6449 | 
| This theorem is referenced by: seq3-1 10554 seqf 10556 seq3p1 10557 seqf2 10560 seq1cd 10561 seqp1cd 10562 | 
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