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| Mirrors > Home > ILE Home > Th. List > psrbaglecl | Unicode version | ||
| Description: The set of finite bags is downward-closed. (Contributed by Mario Carneiro, 29-Dec-2014.) Remove a sethood antecedent. (Revised by SN, 5-Aug-2024.) |
| Ref | Expression |
|---|---|
| psrbag.d |
|
| Ref | Expression |
|---|---|
| psrbaglecl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simp2 1029 |
. 2
| |
| 2 | simp1 1028 |
. . . . 5
| |
| 3 | id 19 |
. . . . . . . 8
| |
| 4 | psrbag.d |
. . . . . . . . . 10
| |
| 5 | 4 | psrbagf 14980 |
. . . . . . . . 9
|
| 6 | 5 | ffnd 5532 |
. . . . . . . 8
|
| 7 | 3, 6 | fndmexd 5579 |
. . . . . . 7
|
| 8 | 7 | 3ad2ant1 1049 |
. . . . . 6
|
| 9 | 4 | psrbag 14979 |
. . . . . 6
|
| 10 | 8, 9 | syl 14 |
. . . . 5
|
| 11 | 2, 10 | mpbid 147 |
. . . 4
|
| 12 | 11 | simprd 114 |
. . 3
|
| 13 | 4 | psrbaglesupp 14984 |
. . 3
|
| 14 | 1 | adantr 276 |
. . . . . . . 8
|
| 15 | 5 | 3ad2ant1 1049 |
. . . . . . . . . 10
|
| 16 | ffn 5531 |
. . . . . . . . . 10
| |
| 17 | elpreima 5822 |
. . . . . . . . . 10
| |
| 18 | 15, 16, 17 | 3syl 17 |
. . . . . . . . 9
|
| 19 | 18 | simprbda 383 |
. . . . . . . 8
|
| 20 | 14, 19 | ffvelcdmd 5838 |
. . . . . . 7
|
| 21 | 20 | nn0zd 9748 |
. . . . . 6
|
| 22 | elnndc 9994 |
. . . . . 6
| |
| 23 | 21, 22 | syl 14 |
. . . . 5
|
| 24 | ffn 5531 |
. . . . . . . . 9
| |
| 25 | elpreima 5822 |
. . . . . . . . 9
| |
| 26 | 1, 24, 25 | 3syl 17 |
. . . . . . . 8
|
| 27 | 26 | adantr 276 |
. . . . . . 7
|
| 28 | 19, 27 | mpbirand 445 |
. . . . . 6
|
| 29 | 28 | dcbid 850 |
. . . . 5
|
| 30 | 23, 29 | mpbird 167 |
. . . 4
|
| 31 | 30 | ralrimiva 2623 |
. . 3
|
| 32 | ssfidc 7238 |
. . 3
| |
| 33 | 12, 13, 31, 32 | syl3anc 1278 |
. 2
|
| 34 | 4 | psrbag 14979 |
. . 3
|
| 35 | 8, 34 | syl 14 |
. 2
|
| 36 | 1, 33, 35 | mpbir2and 957 |
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 623 ax-in2 624 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-coll 4244 ax-sep 4247 ax-nul 4257 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-setind 4682 ax-iinf 4733 ax-cnex 8263 ax-resscn 8264 ax-1cn 8265 ax-1re 8266 ax-icn 8267 ax-addcl 8268 ax-addrcl 8269 ax-mulcl 8270 ax-addcom 8272 ax-addass 8274 ax-distr 8276 ax-i2m1 8277 ax-0lt1 8278 ax-0id 8280 ax-rnegex 8281 ax-cnre 8283 ax-pre-ltirr 8284 ax-pre-ltwlin 8285 ax-pre-lttrn 8286 ax-pre-ltadd 8288 |
| This theorem depends on definitions: df-bi 117 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-if 3639 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-int 3969 df-iun 4012 df-br 4129 df-opab 4191 df-mpt 4192 df-tr 4228 df-id 4436 df-iord 4509 df-on 4511 df-suc 4514 df-iom 4736 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-f1 5380 df-fo 5381 df-f1o 5382 df-fv 5383 df-riota 6031 df-ov 6081 df-oprab 6082 df-mpo 6083 df-ofr 6296 df-1o 6680 df-er 6800 df-map 6917 df-en 7016 df-fin 7018 df-pnf 8355 df-mnf 8356 df-xr 8357 df-ltxr 8358 df-le 8359 df-sub 8492 df-neg 8493 df-inn 9287 df-n0 9546 df-z 9627 df-uz 9904 |
| This theorem is referenced by: (None) |
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