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Mirrors > Home > ILE Home > Th. List > omctfn | Unicode version |
Description: Using countable choice to find a sequence of enumerations for a collection of countable sets. Lemma 8.1.27 of [AczelRathjen], p. 77. (Contributed by Jim Kingdon, 19-Apr-2024.) |
Ref | Expression |
---|---|
omiunct.cc | CCHOICE |
omiunct.g | ⊔ |
Ref | Expression |
---|---|
omctfn | ⊔ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | omiunct.cc | . 2 CCHOICE | |
2 | fnmap 6621 | . . . . 5 | |
3 | omiunct.g | . . . . . 6 ⊔ | |
4 | omex 4570 | . . . . . . . 8 | |
5 | fornex 6083 | . . . . . . . 8 ⊔ ⊔ | |
6 | 4, 5 | ax-mp 5 | . . . . . . 7 ⊔ ⊔ |
7 | 6 | adantl 275 | . . . . . 6 ⊔ ⊔ |
8 | 3, 7 | exlimddv 1886 | . . . . 5 ⊔ |
9 | 4 | a1i 9 | . . . . 5 |
10 | fnovex 5875 | . . . . 5 ⊔ ⊔ | |
11 | 2, 8, 9, 10 | mp3an2i 1332 | . . . 4 ⊔ |
12 | rabexg 4125 | . . . 4 ⊔ ⊔ ⊔ | |
13 | 11, 12 | syl 14 | . . 3 ⊔ ⊔ |
14 | 13 | ralrimiva 2539 | . 2 ⊔ ⊔ |
15 | 4 | enref 6731 | . . 3 |
16 | 15 | a1i 9 | . 2 |
17 | foeq1 5406 | . 2 ⊔ ⊔ | |
18 | fof 5410 | . . . . . . . . . 10 ⊔ ⊔ | |
19 | 18 | adantl 275 | . . . . . . . . 9 ⊔ ⊔ |
20 | elmapg 6627 | . . . . . . . . . 10 ⊔ ⊔ ⊔ | |
21 | 7, 4, 20 | sylancl 410 | . . . . . . . . 9 ⊔ ⊔ ⊔ |
22 | 19, 21 | mpbird 166 | . . . . . . . 8 ⊔ ⊔ |
23 | simpr 109 | . . . . . . . 8 ⊔ ⊔ | |
24 | 22, 23 | jca 304 | . . . . . . 7 ⊔ ⊔ ⊔ |
25 | 24 | ex 114 | . . . . . 6 ⊔ ⊔ ⊔ |
26 | 25 | eximdv 1868 | . . . . 5 ⊔ ⊔ ⊔ |
27 | df-rex 2450 | . . . . 5 ⊔ ⊔ ⊔ ⊔ | |
28 | 26, 27 | syl6ibr 161 | . . . 4 ⊔ ⊔ ⊔ |
29 | 3, 28 | mpd 13 | . . 3 ⊔ ⊔ |
30 | 29 | ralrimiva 2539 | . 2 ⊔ ⊔ |
31 | 1, 14, 16, 17, 30 | cc4n 7212 | 1 ⊔ |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wex 1480 wcel 2136 wral 2444 wrex 2445 crab 2448 cvv 2726 class class class wbr 3982 com 4567 cxp 4602 wfn 5183 wf 5184 wfo 5186 cfv 5188 (class class class)co 5842 c1o 6377 cmap 6614 cen 6704 ⊔ cdju 7002 CCHOICEwacc 7203 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-coll 4097 ax-sep 4100 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-iinf 4565 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-fal 1349 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-ral 2449 df-rex 2450 df-reu 2451 df-rab 2453 df-v 2728 df-sbc 2952 df-csb 3046 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-iom 4568 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-f1 5193 df-fo 5194 df-f1o 5195 df-fv 5196 df-ov 5845 df-oprab 5846 df-mpo 5847 df-1st 6108 df-2nd 6109 df-er 6501 df-map 6616 df-en 6707 df-cc 7204 |
This theorem is referenced by: omiunct 12377 |
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