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| Mirrors > Home > ILE Home > Th. List > mapunen | Unicode version | ||
| Description: Equinumerosity law for set exponentiation of a disjoint union. Exercise 4.45 of [Mendelson] p. 255. (Contributed by NM, 23-Sep-2004.) (Revised by Mario Carneiro, 29-Apr-2015.) |
| Ref | Expression |
|---|---|
| mapunen |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fnmap 6880 |
. . 3
| |
| 2 | simpl3 1029 |
. . . 4
| |
| 3 | 2 | elexd 2826 |
. . 3
|
| 4 | simpl1 1027 |
. . . 4
| |
| 5 | simpl2 1028 |
. . . 4
| |
| 6 | 4, 5 | unexd 4858 |
. . 3
|
| 7 | fnovex 6074 |
. . 3
| |
| 8 | 1, 3, 6, 7 | mp3an2i 1379 |
. 2
|
| 9 | 4 | elexd 2826 |
. . . 4
|
| 10 | fnovex 6074 |
. . . 4
| |
| 11 | 1, 3, 9, 10 | mp3an2i 1379 |
. . 3
|
| 12 | 5 | elexd 2826 |
. . . 4
|
| 13 | fnovex 6074 |
. . . 4
| |
| 14 | 1, 3, 12, 13 | mp3an2i 1379 |
. . 3
|
| 15 | 11, 14 | xpexd 4856 |
. 2
|
| 16 | elmapi 6895 |
. . . . 5
| |
| 17 | ssun1 3381 |
. . . . 5
| |
| 18 | fssres 5531 |
. . . . 5
| |
| 19 | 16, 17, 18 | sylancl 413 |
. . . 4
|
| 20 | ssun2 3382 |
. . . . 5
| |
| 21 | fssres 5531 |
. . . . 5
| |
| 22 | 16, 20, 21 | sylancl 413 |
. . . 4
|
| 23 | 19, 22 | jca 306 |
. . 3
|
| 24 | opelxp 4770 |
. . . 4
| |
| 25 | 2, 4 | elmapd 6887 |
. . . . 5
|
| 26 | 2, 5 | elmapd 6887 |
. . . . 5
|
| 27 | 25, 26 | anbi12d 473 |
. . . 4
|
| 28 | 24, 27 | bitrid 192 |
. . 3
|
| 29 | 23, 28 | imbitrrid 156 |
. 2
|
| 30 | xp1st 6350 |
. . . . . . 7
| |
| 31 | 30 | adantl 277 |
. . . . . 6
|
| 32 | elmapi 6895 |
. . . . . 6
| |
| 33 | 31, 32 | syl 14 |
. . . . 5
|
| 34 | xp2nd 6351 |
. . . . . . 7
| |
| 35 | 34 | adantl 277 |
. . . . . 6
|
| 36 | elmapi 6895 |
. . . . . 6
| |
| 37 | 35, 36 | syl 14 |
. . . . 5
|
| 38 | simplr 529 |
. . . . 5
| |
| 39 | 33, 37, 38 | fun2d 5529 |
. . . 4
|
| 40 | 39 | ex 115 |
. . 3
|
| 41 | 2, 6 | elmapd 6887 |
. . 3
|
| 42 | 40, 41 | sylibrd 169 |
. 2
|
| 43 | 1st2nd2 6360 |
. . . . . . 7
| |
| 44 | 43 | ad2antll 491 |
. . . . . 6
|
| 45 | 33 | adantrl 478 |
. . . . . . . 8
|
| 46 | 37 | adantrl 478 |
. . . . . . . 8
|
| 47 | simplr 529 |
. . . . . . . 8
| |
| 48 | fresaunres1disj 5537 |
. . . . . . . 8
| |
| 49 | 45, 46, 47, 48 | syl3anc 1274 |
. . . . . . 7
|
| 50 | fresaunres2disj 5536 |
. . . . . . . 8
| |
| 51 | 45, 46, 47, 50 | syl3anc 1274 |
. . . . . . 7
|
| 52 | 49, 51 | opeq12d 3884 |
. . . . . 6
|
| 53 | 44, 52 | eqtr4d 2268 |
. . . . 5
|
| 54 | reseq1 5023 |
. . . . . . 7
| |
| 55 | reseq1 5023 |
. . . . . . 7
| |
| 56 | 54, 55 | opeq12d 3884 |
. . . . . 6
|
| 57 | 56 | eqeq2d 2244 |
. . . . 5
|
| 58 | 53, 57 | syl5ibrcom 157 |
. . . 4
|
| 59 | ffn 5499 |
. . . . . . . 8
| |
| 60 | fnresdm 5458 |
. . . . . . . 8
| |
| 61 | 16, 59, 60 | 3syl 17 |
. . . . . . 7
|
| 62 | 61 | ad2antrl 490 |
. . . . . 6
|
| 63 | 62 | eqcomd 2238 |
. . . . 5
|
| 64 | vex 2815 |
. . . . . . . . . 10
| |
| 65 | 64 | resex 5070 |
. . . . . . . . 9
|
| 66 | 64 | resex 5070 |
. . . . . . . . 9
|
| 67 | 65, 66 | op1std 6333 |
. . . . . . . 8
|
| 68 | 65, 66 | op2ndd 6334 |
. . . . . . . 8
|
| 69 | 67, 68 | uneq12d 3373 |
. . . . . . 7
|
| 70 | resundi 5042 |
. . . . . . 7
| |
| 71 | 69, 70 | eqtr4di 2283 |
. . . . . 6
|
| 72 | 71 | eqeq2d 2244 |
. . . . 5
|
| 73 | 63, 72 | syl5ibrcom 157 |
. . . 4
|
| 74 | 58, 73 | impbid 129 |
. . 3
|
| 75 | 74 | ex 115 |
. 2
|
| 76 | 8, 15, 29, 42, 75 | en3d 6999 |
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 2205 ax-14 2206 ax-ext 2214 ax-sep 4221 ax-pow 4279 ax-pr 4314 ax-un 4545 ax-setind 4650 |
| 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 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-nul 3506 df-pw 3667 df-sn 3688 df-pr 3689 df-op 3691 df-uni 3908 df-iun 3986 df-br 4103 df-opab 4165 df-mpt 4166 df-id 4405 df-xp 4746 df-rel 4747 df-cnv 4748 df-co 4749 df-dm 4750 df-rn 4751 df-res 4752 df-ima 4753 df-iota 5303 df-fun 5345 df-fn 5346 df-f 5347 df-f1 5348 df-fo 5349 df-f1o 5350 df-fv 5351 df-ov 6044 df-oprab 6045 df-mpo 6046 df-1st 6325 df-2nd 6326 df-map 6875 df-en 6967 |
| This theorem is referenced by: mapfi 7205 |
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