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Mirrors > Home > ILE Home > Th. List > hashxp | Unicode version |
Description: The size of the Cartesian product of two finite sets is the product of their sizes. (Contributed by Paul Chapman, 30-Nov-2012.) |
Ref | Expression |
---|---|
hashxp | ♯ ♯ ♯ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xpeq1 4548 | . . . 4 | |
2 | 1 | fveq2d 5418 | . . 3 ♯ ♯ |
3 | fveq2 5414 | . . . 4 ♯ ♯ | |
4 | 3 | oveq1d 5782 | . . 3 ♯ ♯ ♯ ♯ |
5 | 2, 4 | eqeq12d 2152 | . 2 ♯ ♯ ♯ ♯ ♯ ♯ |
6 | xpeq1 4548 | . . . 4 | |
7 | 6 | fveq2d 5418 | . . 3 ♯ ♯ |
8 | fveq2 5414 | . . . 4 ♯ ♯ | |
9 | 8 | oveq1d 5782 | . . 3 ♯ ♯ ♯ ♯ |
10 | 7, 9 | eqeq12d 2152 | . 2 ♯ ♯ ♯ ♯ ♯ ♯ |
11 | xpeq1 4548 | . . . 4 | |
12 | 11 | fveq2d 5418 | . . 3 ♯ ♯ |
13 | fveq2 5414 | . . . 4 ♯ ♯ | |
14 | 13 | oveq1d 5782 | . . 3 ♯ ♯ ♯ ♯ |
15 | 12, 14 | eqeq12d 2152 | . 2 ♯ ♯ ♯ ♯ ♯ ♯ |
16 | xpeq1 4548 | . . . 4 | |
17 | 16 | fveq2d 5418 | . . 3 ♯ ♯ |
18 | fveq2 5414 | . . . 4 ♯ ♯ | |
19 | 18 | oveq1d 5782 | . . 3 ♯ ♯ ♯ ♯ |
20 | 17, 19 | eqeq12d 2152 | . 2 ♯ ♯ ♯ ♯ ♯ ♯ |
21 | hash0 10536 | . . . . 5 ♯ | |
22 | 21 | oveq1i 5777 | . . . 4 ♯ ♯ ♯ |
23 | hashcl 10520 | . . . . . . 7 ♯ | |
24 | 23 | nn0cnd 9025 | . . . . . 6 ♯ |
25 | 24 | mul02d 8147 | . . . . 5 ♯ |
26 | 25 | adantl 275 | . . . 4 ♯ |
27 | 22, 26 | syl5eq 2182 | . . 3 ♯ ♯ |
28 | 0xp 4614 | . . . . 5 | |
29 | 28 | fveq2i 5417 | . . . 4 ♯ ♯ |
30 | 29, 21 | eqtri 2158 | . . 3 ♯ |
31 | 27, 30 | syl6reqr 2189 | . 2 ♯ ♯ ♯ |
32 | oveq1 5774 | . . . . 5 ♯ ♯ ♯ ♯ ♯ ♯ ♯ ♯ | |
33 | 32 | adantl 275 | . . . 4 ♯ ♯ ♯ ♯ ♯ ♯ ♯ ♯ |
34 | xpundir 4591 | . . . . . . 7 | |
35 | 34 | fveq2i 5417 | . . . . . 6 ♯ ♯ |
36 | simplr 519 | . . . . . . . . 9 | |
37 | simpllr 523 | . . . . . . . . 9 | |
38 | xpfi 6811 | . . . . . . . . 9 | |
39 | 36, 37, 38 | syl2anc 408 | . . . . . . . 8 |
40 | vex 2684 | . . . . . . . . . . 11 | |
41 | snfig 6701 | . . . . . . . . . . 11 | |
42 | 40, 41 | ax-mp 5 | . . . . . . . . . 10 |
43 | xpfi 6811 | . . . . . . . . . 10 | |
44 | 42, 43 | mpan 420 | . . . . . . . . 9 |
45 | 44 | ad3antlr 484 | . . . . . . . 8 |
46 | simprr 521 | . . . . . . . . . 10 | |
47 | 46 | eldifbd 3078 | . . . . . . . . 9 |
48 | inxp 4668 | . . . . . . . . . 10 | |
49 | disjsn 3580 | . . . . . . . . . . . . 13 | |
50 | 49 | biimpri 132 | . . . . . . . . . . . 12 |
51 | 50 | xpeq1d 4557 | . . . . . . . . . . 11 |
52 | 0xp 4614 | . . . . . . . . . . 11 | |
53 | 51, 52 | syl6eq 2186 | . . . . . . . . . 10 |
54 | 48, 53 | syl5eq 2182 | . . . . . . . . 9 |
55 | 47, 54 | syl 14 | . . . . . . . 8 |
56 | hashun 10544 | . . . . . . . 8 ♯ ♯ ♯ | |
57 | 39, 45, 55, 56 | syl3anc 1216 | . . . . . . 7 ♯ ♯ ♯ |
58 | 40 | snex 4104 | . . . . . . . . . . . 12 |
59 | 58 | a1i 9 | . . . . . . . . . . 11 |
60 | xpcomeng 6715 | . . . . . . . . . . 11 | |
61 | 59, 37, 60 | syl2anc 408 | . . . . . . . . . 10 |
62 | 40 | a1i 9 | . . . . . . . . . . 11 |
63 | xpsneng 6709 | . . . . . . . . . . 11 | |
64 | 37, 62, 63 | syl2anc 408 | . . . . . . . . . 10 |
65 | entr 6671 | . . . . . . . . . 10 | |
66 | 61, 64, 65 | syl2anc 408 | . . . . . . . . 9 |
67 | hashen 10523 | . . . . . . . . . 10 ♯ ♯ | |
68 | 45, 37, 67 | syl2anc 408 | . . . . . . . . 9 ♯ ♯ |
69 | 66, 68 | mpbird 166 | . . . . . . . 8 ♯ ♯ |
70 | 69 | oveq2d 5783 | . . . . . . 7 ♯ ♯ ♯ ♯ |
71 | 57, 70 | eqtrd 2170 | . . . . . 6 ♯ ♯ ♯ |
72 | 35, 71 | syl5eq 2182 | . . . . 5 ♯ ♯ ♯ |
73 | 72 | adantr 274 | . . . 4 ♯ ♯ ♯ ♯ ♯ ♯ |
74 | hashunsng 10546 | . . . . . . . . 9 ♯ ♯ | |
75 | 40, 74 | ax-mp 5 | . . . . . . . 8 ♯ ♯ |
76 | 75 | oveq1d 5782 | . . . . . . 7 ♯ ♯ ♯ ♯ |
77 | 36, 47, 76 | syl2anc 408 | . . . . . 6 ♯ ♯ ♯ ♯ |
78 | hashcl 10520 | . . . . . . . . 9 ♯ | |
79 | 78 | nn0cnd 9025 | . . . . . . . 8 ♯ |
80 | 36, 79 | syl 14 | . . . . . . 7 ♯ |
81 | 37, 24 | syl 14 | . . . . . . 7 ♯ |
82 | 80, 81 | adddirp1d 7785 | . . . . . 6 ♯ ♯ ♯ ♯ ♯ |
83 | 77, 82 | eqtrd 2170 | . . . . 5 ♯ ♯ ♯ ♯ ♯ |
84 | 83 | adantr 274 | . . . 4 ♯ ♯ ♯ ♯ ♯ ♯ ♯ ♯ |
85 | 33, 73, 84 | 3eqtr4d 2180 | . . 3 ♯ ♯ ♯ ♯ ♯ ♯ |
86 | 85 | ex 114 | . 2 ♯ ♯ ♯ ♯ ♯ ♯ |
87 | simpl 108 | . 2 | |
88 | 5, 10, 15, 20, 31, 86, 87 | findcard2sd 6779 | 1 ♯ ♯ ♯ |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wceq 1331 wcel 1480 cvv 2681 cdif 3063 cun 3064 cin 3065 wss 3066 c0 3358 csn 3522 class class class wbr 3924 cxp 4532 cfv 5118 (class class class)co 5767 cen 6625 cfn 6627 cc 7611 cc0 7613 c1 7614 caddc 7616 cmul 7618 ♯chash 10514 |
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 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-coll 4038 ax-sep 4041 ax-nul 4049 ax-pow 4093 ax-pr 4126 ax-un 4350 ax-setind 4447 ax-iinf 4497 ax-cnex 7704 ax-resscn 7705 ax-1cn 7706 ax-1re 7707 ax-icn 7708 ax-addcl 7709 ax-addrcl 7710 ax-mulcl 7711 ax-addcom 7713 ax-mulcom 7714 ax-addass 7715 ax-mulass 7716 ax-distr 7717 ax-i2m1 7718 ax-0lt1 7719 ax-1rid 7720 ax-0id 7721 ax-rnegex 7722 ax-cnre 7724 ax-pre-ltirr 7725 ax-pre-ltwlin 7726 ax-pre-lttrn 7727 ax-pre-apti 7728 ax-pre-ltadd 7729 |
This theorem depends on definitions: df-bi 116 df-dc 820 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ne 2307 df-nel 2402 df-ral 2419 df-rex 2420 df-reu 2421 df-rab 2423 df-v 2683 df-sbc 2905 df-csb 2999 df-dif 3068 df-un 3070 df-in 3072 df-ss 3079 df-nul 3359 df-if 3470 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-int 3767 df-iun 3810 df-br 3925 df-opab 3985 df-mpt 3986 df-tr 4022 df-id 4210 df-iord 4283 df-on 4285 df-ilim 4286 df-suc 4288 df-iom 4500 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-res 4546 df-ima 4547 df-iota 5083 df-fun 5120 df-fn 5121 df-f 5122 df-f1 5123 df-fo 5124 df-f1o 5125 df-fv 5126 df-riota 5723 df-ov 5770 df-oprab 5771 df-mpo 5772 df-1st 6031 df-2nd 6032 df-recs 6195 df-irdg 6260 df-frec 6281 df-1o 6306 df-oadd 6310 df-er 6422 df-en 6628 df-dom 6629 df-fin 6630 df-pnf 7795 df-mnf 7796 df-xr 7797 df-ltxr 7798 df-le 7799 df-sub 7928 df-neg 7929 df-inn 8714 df-n0 8971 df-z 9048 df-uz 9320 df-fz 9784 df-ihash 10515 |
This theorem is referenced by: crth 11889 phimullem 11890 |
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