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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 2737 | . . . 4 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) | |
| 2 | 1 | cardfz 13897 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (card‘(1...𝑁)) = (◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁)) |
| 3 | 2 | fveq2d 6839 | . 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 13900 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (1...𝑁) ∈ Fin) | |
| 5 | 1 | hashgval 14260 | . . 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 13898 | . . 3 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω):ω–1-1-onto→ℕ0 |
| 8 | f1ocnvfv2 7225 | . . 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 2780 | 1 ⊢ (𝑁 ∈ ℕ0 → (♯‘(1...𝑁)) = 𝑁) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 Vcvv 3441 ↦ cmpt 5180 ◡ccnv 5624 ↾ cres 5627 –1-1-onto→wf1o 6492 ‘cfv 6493 (class class class)co 7360 ωcom 7810 reccrdg 8342 Fincfn 8887 cardccrd 9851 0cc0 11030 1c1 11031 + caddc 11033 ℕ0cn0 12405 ...cfz 13427 ♯chash 14257 |
| 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 2709 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7682 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-pre-mulgt0 11107 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4904 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-card 9855 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12150 df-n0 12406 df-z 12493 df-uz 12756 df-fz 13428 df-hash 14258 |
| This theorem is referenced by: fz1eqb 14281 isfinite4 14289 hasheq0 14290 hashsng 14296 fseq1hash 14303 hashdom 14306 hashfz 14354 ishashinf 14390 isercolllem2 15593 isercoll 15595 summolem3 15641 summolem2a 15642 o1fsum 15740 climcndslem1 15776 climcndslem2 15777 harmonic 15786 mertenslem1 15811 prodmolem3 15860 prodmolem2a 15861 risefallfac 15951 bpolylem 15975 phicl2 16699 phibnd 16702 hashdvds 16706 phiprmpw 16707 eulerth 16714 pcfac 16831 prmreclem2 16849 prmreclem3 16850 prmreclem5 16852 4sqlem11 16887 vdwlem12 16924 ramub2 16946 ramlb 16951 0ram 16952 ram0 16954 dfod2 19497 gsumval3 19840 uniioombllem4 25547 birthdaylem2 26922 birthdaylem3 26923 basellem4 27054 basellem5 27055 basellem8 27058 ppiltx 27147 vmasum 27187 logfac2 27188 chpval2 27189 chpchtsum 27190 chpub 27191 logfaclbnd 27193 bposlem1 27255 lgsqrlem4 27320 gausslemma2dlem6 27343 lgseisenlem4 27349 lgsquadlem1 27351 lgsquadlem2 27352 lgsquadlem3 27353 dchrmusum2 27465 dchrisum0lem2a 27488 mudivsum 27501 mulogsumlem 27502 selberglem2 27517 cyclnumvtx 29877 ballotlem1 34646 ballotlemfmpn 34654 derangen2 35370 subfaclefac 35372 subfacp1lem1 35375 erdszelem10 35396 erdsze2lem1 35399 snmlff 35525 bcprod 35934 bj-finsumval0 37492 hashscontpow 42444 sticksstones2 42469 sticksstones5 42472 sticksstones10 42477 sticksstones12a 42479 fz1sumconst 42631 eldioph2lem1 43069 rp-isfinite5 43825 rp-isfinite6 43826 stoweidlem38 46349 dirkertrigeq 46412 etransclem32 46577 nn0mulfsum 48937 aacllem 50113 |
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