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| Mirrors > Home > ILE Home > Th. List > mapfi | Unicode version | ||
| Description: Set exponentiation of finite sets is finite. (Contributed by Jeff Madsen, 19-Jun-2011.) |
| Ref | Expression |
|---|---|
| mapfi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oveq2 6093 |
. . 3
| |
| 2 | 1 | eleq1d 2307 |
. 2
|
| 3 | oveq2 6093 |
. . 3
| |
| 4 | 3 | eleq1d 2307 |
. 2
|
| 5 | oveq2 6093 |
. . 3
| |
| 6 | 5 | eleq1d 2307 |
. 2
|
| 7 | oveq2 6093 |
. . 3
| |
| 8 | 7 | eleq1d 2307 |
. 2
|
| 9 | mapdm0 6937 |
. . . 4
| |
| 10 | 0ex 4260 |
. . . . 5
| |
| 11 | snfig 7103 |
. . . . 5
| |
| 12 | 10, 11 | ax-mp 5 |
. . . 4
|
| 13 | 9, 12 | eqeltrdi 2329 |
. . 3
|
| 14 | 13 | adantr 276 |
. 2
|
| 15 | simpr 110 |
. . . . 5
| |
| 16 | simp-4l 547 |
. . . . . 6
| |
| 17 | vex 2824 |
. . . . . . . 8
| |
| 18 | 17 | a1i 9 |
. . . . . . 7
|
| 19 | 16, 18 | mapsnend 7099 |
. . . . . 6
|
| 20 | enfii 7176 |
. . . . . 6
| |
| 21 | 16, 19, 20 | syl2anc 415 |
. . . . 5
|
| 22 | xpfi 7239 |
. . . . 5
| |
| 23 | 15, 21, 22 | syl2anc 415 |
. . . 4
|
| 24 | vex 2824 |
. . . . . 6
| |
| 25 | 24 | a1i 9 |
. . . . 5
|
| 26 | 17 | snex 4322 |
. . . . . 6
|
| 27 | 26 | a1i 9 |
. . . . 5
|
| 28 | simplrr 542 |
. . . . . . 7
| |
| 29 | 28 | eldifbd 3232 |
. . . . . 6
|
| 30 | disjsn 3771 |
. . . . . 6
| |
| 31 | 29, 30 | sylibr 134 |
. . . . 5
|
| 32 | mapunen 7151 |
. . . . 5
| |
| 33 | 25, 27, 16, 31, 32 | syl31anc 1281 |
. . . 4
|
| 34 | enfii 7176 |
. . . 4
| |
| 35 | 23, 33, 34 | syl2anc 415 |
. . 3
|
| 36 | 35 | ex 115 |
. 2
|
| 37 | simpr 110 |
. 2
| |
| 38 | 2, 4, 6, 8, 14, 36, 37 | findcard2sd 7196 |
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-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 4246 ax-sep 4249 ax-nul 4259 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-iinf 4735 |
| This proof 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-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 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-iun 4014 df-br 4131 df-opab 4193 df-mpt 4194 df-tr 4230 df-id 4438 df-iord 4511 df-on 4513 df-suc 4516 df-iom 4738 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 df-iota 5337 df-fun 5379 df-fn 5380 df-f 5381 df-f1 5382 df-fo 5383 df-f1o 5384 df-fv 5385 df-ov 6088 df-oprab 6089 df-mpo 6090 df-1st 6374 df-2nd 6375 df-1o 6687 df-er 6807 df-map 6924 df-en 7023 df-fin 7025 |
| This theorem is used by: f1setfi 7317 fipwfi 7321 hashmap 11268 hashpwfi 11269 birthdaylem1g 16087 |
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