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| Mirrors > Home > MPE Home > Th. List > hashfz1 | Structured version Visualization version GIF version | ||
| Description: The set (1...𝑁) has 𝑁 elements. (Contributed by Paul Chapman, 22-Jun-2011.) (Revised by Mario Carneiro, 15-Sep-2013.) |
| Ref | Expression |
|---|---|
| hashfz1 | ⊢ (𝑁 ∈ ℕ0 → (♯‘(1...𝑁)) = 𝑁) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2736 | . . . 4 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) | |
| 2 | 1 | cardfz 13932 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (card‘(1...𝑁)) = (◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁)) |
| 3 | 2 | fveq2d 6844 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(card‘(1...𝑁))) = ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁))) |
| 4 | fzfid 13935 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (1...𝑁) ∈ Fin) | |
| 5 | 1 | hashgval 14295 | . . 3 ⊢ ((1...𝑁) ∈ Fin → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(card‘(1...𝑁))) = (♯‘(1...𝑁))) |
| 6 | 4, 5 | syl 17 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(card‘(1...𝑁))) = (♯‘(1...𝑁))) |
| 7 | 1 | hashgf1o 13933 | . . 3 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω):ω–1-1-onto→ℕ0 |
| 8 | f1ocnvfv2 7232 | . . 3 ⊢ (((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω):ω–1-1-onto→ℕ0 ∧ 𝑁 ∈ ℕ0) → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁)) = 𝑁) | |
| 9 | 7, 8 | mpan 691 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁)) = 𝑁) |
| 10 | 3, 6, 9 | 3eqtr3d 2779 | 1 ⊢ (𝑁 ∈ ℕ0 → (♯‘(1...𝑁)) = 𝑁) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 Vcvv 3429 ↦ cmpt 5166 ◡ccnv 5630 ↾ cres 5633 –1-1-onto→wf1o 6497 ‘cfv 6498 (class class class)co 7367 ωcom 7817 reccrdg 8348 Fincfn 8893 cardccrd 9859 0cc0 11038 1c1 11039 + caddc 11041 ℕ0cn0 12437 ...cfz 13461 ♯chash 14292 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-int 4890 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-card 9863 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-n0 12438 df-z 12525 df-uz 12789 df-fz 13462 df-hash 14293 |
| This theorem is referenced by: fz1eqb 14316 isfinite4 14324 hasheq0 14325 hashsng 14331 fseq1hash 14338 hashdom 14341 hashfz 14389 ishashinf 14425 isercolllem2 15628 isercoll 15630 summolem3 15676 summolem2a 15677 o1fsum 15776 climcndslem1 15814 climcndslem2 15815 harmonic 15824 mertenslem1 15849 prodmolem3 15898 prodmolem2a 15899 risefallfac 15989 bpolylem 16013 phicl2 16738 phibnd 16741 hashdvds 16745 phiprmpw 16746 eulerth 16753 pcfac 16870 prmreclem2 16888 prmreclem3 16889 prmreclem5 16891 4sqlem11 16926 vdwlem12 16963 ramub2 16985 ramlb 16990 0ram 16991 ram0 16993 dfod2 19539 gsumval3 19882 uniioombllem4 25553 birthdaylem2 26916 birthdaylem3 26917 basellem4 27047 basellem5 27048 basellem8 27051 ppiltx 27140 vmasum 27179 logfac2 27180 chpval2 27181 chpchtsum 27182 chpub 27183 logfaclbnd 27185 bposlem1 27247 lgsqrlem4 27312 gausslemma2dlem6 27335 lgseisenlem4 27341 lgsquadlem1 27343 lgsquadlem2 27344 lgsquadlem3 27345 dchrmusum2 27457 dchrisum0lem2a 27480 mudivsum 27493 mulogsumlem 27494 selberglem2 27509 cyclnumvtx 29868 ballotlem1 34631 ballotlemfmpn 34639 derangen2 35356 subfaclefac 35358 subfacp1lem1 35361 erdszelem10 35382 erdsze2lem1 35385 snmlff 35511 bcprod 35920 bj-finsumval0 37599 hashscontpow 42561 sticksstones2 42586 sticksstones5 42589 sticksstones10 42594 sticksstones12a 42596 fz1sumconst 42741 eldioph2lem1 43192 rp-isfinite5 43944 rp-isfinite6 43945 stoweidlem38 46466 dirkertrigeq 46529 etransclem32 46694 nn0mulfsum 49100 aacllem 50276 |
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