| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 6092 |
. . . . . . . . . 10
| |
| 2 | 1 | fveq2d 5699 |
. . . . . . . . 9
|
| 3 | 2 | oveq2d 6101 |
. . . . . . . 8
|
| 4 | oveq1 6092 |
. . . . . . . 8
| |
| 5 | 3, 4 | cbvmpov 6168 |
. . . . . . 7
|
| 6 | 5 | oveqi 6098 |
. . . . . 6
|
| 7 | 6 | opeq2i 3908 |
. . . . 5
|
| 8 | 7 | a1i 9 |
. . . 4
|
| 9 | 8 | mpoeq3ia 6153 |
. . 3
|
| 10 | oveq1 6092 |
. . . . 5
| |
| 11 | oveq1 6092 |
. . . . 5
| |
| 12 | 10, 11 | opeq12d 3912 |
. . . 4
|
| 13 | oveq2 6093 |
. . . . 5
| |
| 14 | 13 | opeq2d 3911 |
. . . 4
|
| 15 | 12, 14 | cbvmpov 6168 |
. . 3
|
| 16 | 9, 15 | eqtr3i 2261 |
. 2
|
| 17 | freceq1 6663 |
. 2
| |
| 18 | 16, 17 | ax-mp 5 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 |
| This proof 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-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-mpt 4194 df-res 4786 df-iota 5337 df-fv 5385 df-ov 6088 df-oprab 6089 df-mpo 6090 df-recs 6576 df-frec 6662 |
| This theorem is used by: seq3-1 10899 seqf 10901 seq3p1 10902 seqf2 10905 seq1cd 10906 seqp1cd 10907 |
| Copyright terms: Public domain | W3C validator |