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| Mirrors > Home > ILE Home > Th. List > raliunxp | Unicode version | ||
| Description: Write a double restricted
quantification as one universal quantifier.
In this version of ralxp 4923, |
| Ref | Expression |
|---|---|
| ralxp.1 |
|
| Ref | Expression |
|---|---|
| raliunxp |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eliunxp 4919 |
. . . . . 6
| |
| 2 | 1 | imbi1i 238 |
. . . . 5
|
| 3 | 19.23vv 1937 |
. . . . 5
| |
| 4 | 2, 3 | bitr4i 187 |
. . . 4
|
| 5 | 4 | albii 1523 |
. . 3
|
| 6 | alrot3 1538 |
. . . 4
| |
| 7 | impexp 263 |
. . . . . . 7
| |
| 8 | 7 | albii 1523 |
. . . . . 6
|
| 9 | vex 2824 |
. . . . . . . 8
| |
| 10 | vex 2824 |
. . . . . . . 8
| |
| 11 | 9, 10 | opex 4369 |
. . . . . . 7
|
| 12 | ralxp.1 |
. . . . . . . 8
| |
| 13 | 12 | imbi2d 230 |
. . . . . . 7
|
| 14 | 11, 13 | ceqsalv 2852 |
. . . . . 6
|
| 15 | 8, 14 | bitri 184 |
. . . . 5
|
| 16 | 15 | 2albii 1524 |
. . . 4
|
| 17 | 6, 16 | bitri 184 |
. . 3
|
| 18 | 5, 17 | bitri 184 |
. 2
|
| 19 | df-ral 2533 |
. 2
| |
| 20 | r2al 2569 |
. 2
| |
| 21 | 18, 19, 20 | 3bitr4i 212 |
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-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-iun 4014 df-opab 4193 df-xp 4780 df-rel 4781 |
| This theorem is used by: ralxp 4923 fmpox 6436 |
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