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| Mirrors > Home > ILE Home > Th. List > fival | Unicode version | ||
| Description: The set of all the finite
intersections of the elements of |
| Ref | Expression |
|---|---|
| fival |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-fi 7269 |
. 2
| |
| 2 | pweq 3677 |
. . . . 5
| |
| 3 | 2 | ineq1d 3425 |
. . . 4
|
| 4 | 3 | rexeqdv 2750 |
. . 3
|
| 5 | 4 | abbidv 2354 |
. 2
|
| 6 | elex 2827 |
. 2
| |
| 7 | simpr 110 |
. . . . . . 7
| |
| 8 | elinel1 3409 |
. . . . . . . . 9
| |
| 9 | 8 | elpwid 3685 |
. . . . . . . 8
|
| 10 | eqvisset 2826 |
. . . . . . . . . . . 12
| |
| 11 | intexr 4267 |
. . . . . . . . . . . 12
| |
| 12 | 10, 11 | syl 14 |
. . . . . . . . . . 11
|
| 13 | 12 | adantl 277 |
. . . . . . . . . 10
|
| 14 | 13 | neneqd 2435 |
. . . . . . . . 9
|
| 15 | elinel2 3410 |
. . . . . . . . . . 11
| |
| 16 | 15 | adantr 276 |
. . . . . . . . . 10
|
| 17 | fin0or 7156 |
. . . . . . . . . . 11
| |
| 18 | 17 | orcomd 737 |
. . . . . . . . . 10
|
| 19 | 16, 18 | syl 14 |
. . . . . . . . 9
|
| 20 | 14, 19 | ecased 1386 |
. . . . . . . 8
|
| 21 | intssuni2m 3978 |
. . . . . . . 8
| |
| 22 | 9, 20, 21 | syl2an2r 599 |
. . . . . . 7
|
| 23 | 7, 22 | eqsstrd 3278 |
. . . . . 6
|
| 24 | velpw 3681 |
. . . . . 6
| |
| 25 | 23, 24 | sylibr 134 |
. . . . 5
|
| 26 | 25 | rexlimiva 2657 |
. . . 4
|
| 27 | 26 | abssi 3317 |
. . 3
|
| 28 | uniexg 4565 |
. . . 4
| |
| 29 | 28 | pwexd 4299 |
. . 3
|
| 30 | ssexg 4254 |
. . 3
| |
| 31 | 27, 29, 30 | sylancr 414 |
. 2
|
| 32 | 1, 5, 6, 31 | fvmptd3 5776 |
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-in1 619 ax-in2 620 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-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-nul 4241 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-iinf 4715 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-v 2817 df-sbc 3046 df-csb 3142 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-int 3955 df-br 4115 df-opab 4177 df-mpt 4178 df-id 4419 df-suc 4497 df-iom 4718 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-res 4766 df-ima 4767 df-iota 5317 df-fun 5359 df-fn 5360 df-f 5361 df-f1 5362 df-fo 5363 df-f1o 5364 df-fv 5365 df-er 6780 df-en 6989 df-fin 6991 df-fi 7269 |
| This theorem is referenced by: elfi 7271 fi0 7275 |
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