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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 2762 | . . . 4 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) | |
| 2 | 1 | cardfz 14013 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (card‘(1...𝑁)) = (◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁)) |
| 3 | 2 | fveq2d 6885 | . 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 14016 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (1...𝑁) ∈ Fin) | |
| 5 | 1 | hashgval 14376 | . . 3 ⊢ ((1...𝑁) ∈ Fin → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(card‘(1...𝑁))) = (♯‘(1...𝑁))) |
| 6 | 4, 5 | syl 18 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(card‘(1...𝑁))) = (♯‘(1...𝑁))) |
| 7 | 1 | hashgf1o 14014 | . . 3 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω):ω–1-1-onto→ℕ0 |
| 8 | f1ocnvfv2 7275 | . . 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 702 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘(◡(rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω)‘𝑁)) = 𝑁) |
| 10 | 3, 6, 9 | 3eqtr3d 2805 | 1 ⊢ (𝑁 ∈ ℕ0 → (♯‘(1...𝑁)) = 𝑁) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2142 Vcvv 3454 ↦ cmpt 5191 ◡ccnv 5659 ↾ cres 5662 –1-1-onto→wf1o 6535 ‘cfv 6536 (class class class)co 7412 ωcom 7860 reccrdg 8394 Fincfn 8941 cardccrd 9928 0cc0 11106 1c1 11107 + caddc 11109 ℕ0cn0 12510 ...cfz 13541 ♯chash 14373 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1103 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-int 4912 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5555 df-eprel 5560 df-po 5568 df-so 5569 df-fr 5613 df-we 5615 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7861 df-1st 7984 df-2nd 7985 df-frecs 8276 df-wrecs 8307 df-recs 8356 df-rdg 8395 df-1o 8451 df-er 8692 df-en 8942 df-dom 8943 df-sdom 8944 df-fin 8945 df-card 9932 df-pnf 11251 df-mnf 11252 df-xr 11253 df-ltxr 11254 df-le 11255 df-sub 11449 df-neg 11450 df-nn 12240 df-n0 12511 df-z 12598 df-uz 12869 df-fz 13542 df-hash 14374 |
| This theorem is used by: fz1eqb 14397 isfinite4 14405 hasheq0 14406 hashsng 14412 fseq1hash 14419 hashdom 14422 hashfz 14471 ishashinf 14507 isercolllem2 15724 isercoll 15726 summolem3 15772 summolem2a 15773 o1fsum 15872 climcndslem1 15910 climcndslem2 15911 harmonic 15920 mertenslem1 15945 prodmolem3 15994 prodmolem2a 15995 risefallfac 16085 bpolylem 16108 phicl2 16833 phibnd 16836 hashdvds 16840 phiprmpw 16841 eulerth 16848 pcfac 16965 prmreclem2 16983 prmreclem3 16984 prmreclem5 16986 4sqlem11 17021 vdwlem12 17058 ramub2 17080 ramlb 17085 0ram 17086 ram0 17088 dfod2 19640 gsumval3 19983 uniioombllem4 25756 birthdaylem2 27128 birthdaylem3 27129 basellem4 27259 basellem5 27260 basellem8 27263 ppiltx 27352 vmasum 27391 logfac2 27392 chpval2 27393 chpchtsum 27394 chpub 27395 logfaclbnd 27397 bposlem1 27459 lgsqrlem4 27524 gausslemma2dlem6 27547 lgseisenlem4 27553 lgsquadlem1 27555 lgsquadlem2 27556 lgsquadlem3 27557 dchrmusum2 27669 dchrisum0lem2a 27692 mudivsum 27705 mulogsumlem 27706 selberglem2 27721 cyclnumvtx 30160 ballotlem1 34886 ballotlemfmpn 34894 derangen2 35674 subfaclefac 35676 subfacp1lem1 35679 erdszelem10 35700 erdsze2lem1 35703 snmlff 35829 bcprod 36238 bj-finsumval0 37957 hashscontpow 42917 sticksstones2 42942 sticksstones5 42945 sticksstones10 42950 sticksstones12a 42952 fz1sumconst 43098 eldioph2lem1 43519 rp-isfinite5 44271 rp-isfinite6 44272 stoweidlem38 46780 dirkertrigeq 46843 etransclem32 47008 nn0mulfsum 49432 aacllem 50649 |
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