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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 2729 | . . . 4 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) | |
| 2 | 1 | cardfz 13911 | . . 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 13914 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (1...𝑁) ∈ Fin) | |
| 5 | 1 | hashgval 14274 | . . 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 13912 | . . 3 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω):ω–1-1-onto→ℕ0 |
| 8 | f1ocnvfv2 7234 | . . 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 690 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁)) = 𝑁) |
| 10 | 3, 6, 9 | 3eqtr3d 2772 | 1 ⊢ (𝑁 ∈ ℕ0 → (♯‘(1...𝑁)) = 𝑁) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2109 Vcvv 3444 ↦ cmpt 5183 ◡ccnv 5630 ↾ cres 5633 –1-1-onto→wf1o 6498 ‘cfv 6499 (class class class)co 7369 ωcom 7822 reccrdg 8354 Fincfn 8895 cardccrd 9864 0cc0 11044 1c1 11045 + caddc 11047 ℕ0cn0 12418 ...cfz 13444 ♯chash 14271 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 ax-cnex 11100 ax-resscn 11101 ax-1cn 11102 ax-icn 11103 ax-addcl 11104 ax-addrcl 11105 ax-mulcl 11106 ax-mulrcl 11107 ax-mulcom 11108 ax-addass 11109 ax-mulass 11110 ax-distr 11111 ax-i2m1 11112 ax-1ne0 11113 ax-1rid 11114 ax-rnegex 11115 ax-rrecex 11116 ax-cnre 11117 ax-pre-lttri 11118 ax-pre-lttrn 11119 ax-pre-ltadd 11120 ax-pre-mulgt0 11121 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3352 df-rab 3403 df-v 3446 df-sbc 3751 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-int 4907 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 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 6262 df-ord 6323 df-on 6324 df-lim 6325 df-suc 6326 df-iota 6452 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-riota 7326 df-ov 7372 df-oprab 7373 df-mpo 7374 df-om 7823 df-1st 7947 df-2nd 7948 df-frecs 8237 df-wrecs 8268 df-recs 8317 df-rdg 8355 df-1o 8411 df-er 8648 df-en 8896 df-dom 8897 df-sdom 8898 df-fin 8899 df-card 9868 df-pnf 11186 df-mnf 11187 df-xr 11188 df-ltxr 11189 df-le 11190 df-sub 11383 df-neg 11384 df-nn 12163 df-n0 12419 df-z 12506 df-uz 12770 df-fz 13445 df-hash 14272 |
| This theorem is referenced by: fz1eqb 14295 isfinite4 14303 hasheq0 14304 hashsng 14310 fseq1hash 14317 hashdom 14320 hashfz 14368 ishashinf 14404 isercolllem2 15608 isercoll 15610 summolem3 15656 summolem2a 15657 o1fsum 15755 climcndslem1 15791 climcndslem2 15792 harmonic 15801 mertenslem1 15826 prodmolem3 15875 prodmolem2a 15876 risefallfac 15966 bpolylem 15990 phicl2 16714 phibnd 16717 hashdvds 16721 phiprmpw 16722 eulerth 16729 pcfac 16846 prmreclem2 16864 prmreclem3 16865 prmreclem5 16867 4sqlem11 16902 vdwlem12 16939 ramub2 16961 ramlb 16966 0ram 16967 ram0 16969 dfod2 19478 gsumval3 19821 uniioombllem4 25520 birthdaylem2 26895 birthdaylem3 26896 basellem4 27027 basellem5 27028 basellem8 27031 ppiltx 27120 vmasum 27160 logfac2 27161 chpval2 27162 chpchtsum 27163 chpub 27164 logfaclbnd 27166 bposlem1 27228 lgsqrlem4 27293 gausslemma2dlem6 27316 lgseisenlem4 27322 lgsquadlem1 27324 lgsquadlem2 27325 lgsquadlem3 27326 dchrmusum2 27438 dchrisum0lem2a 27461 mudivsum 27474 mulogsumlem 27475 selberglem2 27490 cyclnumvtx 29780 ballotlem1 34471 ballotlemfmpn 34479 derangen2 35154 subfaclefac 35156 subfacp1lem1 35159 erdszelem10 35180 erdsze2lem1 35183 snmlff 35309 bcprod 35718 bj-finsumval0 37266 hashscontpow 42103 sticksstones2 42128 sticksstones5 42131 sticksstones10 42136 sticksstones12a 42138 fz1sumconst 42290 eldioph2lem1 42741 rp-isfinite5 43499 rp-isfinite6 43500 stoweidlem38 46029 dirkertrigeq 46092 etransclem32 46257 nn0mulfsum 48606 aacllem 49783 |
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